Burkina Faso vs South Sudan

Burkina Faso (Africa) and South Sudan (Africa) side by side. Each value is the latest available for that country, so the year may differ; the rank is among all countries of the world.

Over time

with the world for reference

GDP per capita

US$ · 2008-2015

Burkina Faso South Sudan World

0 2,500 5,000 7,500 10k 13k 2008 Burkina Faso: 619.44 South Sudan: 1,654.21 World: 9,425.74 2009 Burkina Faso: 601.57 South Sudan: 1,323.22 World: 8,827.04 2010 Burkina Faso: 624.96 South Sudan: 1,498.27 World: 9,555.07 2011 Burkina Faso: 725.02 South Sudan: 1,448.98 World: 10,496.93 2012 Burkina Faso: 731.47 South Sudan: 1,109.26 World: 10,597.85 2013 Burkina Faso: 759.76 South Sudan: 1,650.19 World: 10,759.35 2014 Burkina Faso: 764.86 South Sudan: 1,242.73 World: 10,912.24 2015 Burkina Faso: 630.12 South Sudan: 1,080.15 World: 10,191.98 2008 2009 2010 2011 2012 2013 2014 2015

Life expectancy at birth

years · 1960-2024

Burkina Faso South Sudan World

0 20 40 60 80 1960 Burkina Faso: 36.07 South Sudan: 28.05 World: 50.94 1961 Burkina Faso: 36.36 South Sudan: 28.28 World: 52.8 1962 Burkina Faso: 36.75 South Sudan: 28.51 World: 55.29 1963 Burkina Faso: 37.09 South Sudan: 28.25 World: 55.65 1964 Burkina Faso: 37.4 South Sudan: 32.46 World: 56.1 1965 Burkina Faso: 37.76 South Sudan: 28.78 World: 55.93 1966 Burkina Faso: 38.09 South Sudan: 25.63 World: 56.45 1967 Burkina Faso: 38.43 South Sudan: 25.86 World: 56.9 1968 Burkina Faso: 38.76 South Sudan: 26.1 World: 57.34 1969 Burkina Faso: 39.02 South Sudan: 25.4 World: 57.68 1970 Burkina Faso: 39.54 South Sudan: 25.63 World: 57.94 1971 Burkina Faso: 39.85 South Sudan: 30.99 World: 58.02 1972 Burkina Faso: 40.4 South Sudan: 31.29 World: 58.84 1973 Burkina Faso: 40.95 South Sudan: 36.28 World: 59.3 1974 Burkina Faso: 41.71 South Sudan: 36.59 World: 59.7 1975 Burkina Faso: 42.49 South Sudan: 36.87 World: 60.13 1976 Burkina Faso: 43.33 South Sudan: 37.09 World: 60.45 1977 Burkina Faso: 44.17 South Sudan: 37.4 World: 61.04 1978 Burkina Faso: 45 South Sudan: 37.59 World: 61.39 1979 Burkina Faso: 45.7 South Sudan: 37.81 World: 61.84 1980 Burkina Faso: 46.47 South Sudan: 38.03 World: 62.15 1981 Burkina Faso: 46.87 South Sudan: 38.31 World: 62.52 1982 Burkina Faso: 47.63 South Sudan: 38.68 World: 62.87 1983 Burkina Faso: 48.06 South Sudan: 34.73 World: 63.13 1984 Burkina Faso: 48.46 South Sudan: 31.79 World: 63.44 1985 Burkina Faso: 48.75 South Sudan: 32.36 World: 63.73 1986 Burkina Faso: 48.99 South Sudan: 32.82 World: 64.12 1987 Burkina Faso: 49.1 South Sudan: 20.72 World: 64.46 1988 Burkina Faso: 49.22 South Sudan: 10.99 World: 64.67 1989 Burkina Faso: 49.27 South Sudan: 28.22 World: 64.96 1990 Burkina Faso: 49.32 South Sudan: 28.63 World: 65.11 1991 Burkina Faso: 49.33 South Sudan: 29.19 World: 65.3 1992 Burkina Faso: 49.38 South Sudan: 21.94 World: 65.55 1993 Burkina Faso: 49.41 South Sudan: 22.26 World: 65.74 1994 Burkina Faso: 49.47 South Sudan: 44.86 World: 65.96 1995 Burkina Faso: 49.55 South Sudan: 31.51 World: 66.2 1996 Burkina Faso: 49.69 South Sudan: 32.12 World: 66.52 1997 Burkina Faso: 49.56 South Sudan: 33.07 World: 66.83 1998 Burkina Faso: 50.16 South Sudan: 19.05 World: 67.07 1999 Burkina Faso: 50.46 South Sudan: 44.54 World: 67.31 2000 Burkina Faso: 50.81 South Sudan: 47.59 World: 67.65 2001 Burkina Faso: 51.19 South Sudan: 48.55 World: 67.95 2002 Burkina Faso: 51.45 South Sudan: 49.39 World: 68.23 2003 Burkina Faso: 51.96 South Sudan: 52.32 World: 68.52 2004 Burkina Faso: 52.6 South Sudan: 53.05 World: 68.77 2005 Burkina Faso: 53.27 South Sudan: 53.97 World: 69.11 2006 Burkina Faso: 53.78 South Sudan: 54.65 World: 69.47 2007 Burkina Faso: 54.38 South Sudan: 55.43 World: 69.81 2008 Burkina Faso: 55.2 South Sudan: 56.28 World: 70 2009 Burkina Faso: 55.79 South Sudan: 56.85 World: 70.38 2010 Burkina Faso: 56.34 South Sudan: 57.49 World: 70.68 2011 Burkina Faso: 57 South Sudan: 57.67 World: 70.97 2012 Burkina Faso: 57.46 South Sudan: 58.24 World: 71.26 2013 Burkina Faso: 57.9 South Sudan: 58.29 World: 71.53 2014 Burkina Faso: 58.33 South Sudan: 45.63 World: 71.78 2015 Burkina Faso: 58.78 South Sudan: 39.76 World: 71.97 2016 Burkina Faso: 59.17 South Sudan: 36.72 World: 72.19 2017 Burkina Faso: 59.58 South Sudan: 35.35 World: 72.37 2018 Burkina Faso: 59.97 South Sudan: 51.91 World: 72.64 2019 Burkina Faso: 60.18 South Sudan: 58.13 World: 72.87 2020 Burkina Faso: 60.45 South Sudan: 57.65 World: 72.18 2021 Burkina Faso: 60.05 South Sudan: 57.05 World: 71.22 2022 Burkina Faso: 60.7 South Sudan: 57.2 World: 72.97 2023 Burkina Faso: 61.09 South Sudan: 57.62 World: 73.33 2024 Burkina Faso: 61.29 South Sudan: 57.74 World: 73.48 1960 1980 1990 2000 2024

Fertility rate

1960-2024

Burkina Faso South Sudan World

2 4 6 8 1960 Burkina Faso: 6.25 South Sudan: 7.16 World: 4.69 1961 Burkina Faso: 6.29 South Sudan: 7.18 World: 4.56 1962 Burkina Faso: 6.32 South Sudan: 7.2 World: 5.02 1963 Burkina Faso: 6.36 South Sudan: 7.2 World: 5.31 1964 Burkina Faso: 6.42 South Sudan: 7.22 World: 5.13 1965 Burkina Faso: 6.47 South Sudan: 7.22 World: 5.08 1966 Burkina Faso: 6.53 South Sudan: 7.25 World: 4.97 1967 Burkina Faso: 6.59 South Sudan: 7.26 World: 4.87 1968 Burkina Faso: 6.65 South Sudan: 7.26 World: 4.98 1969 Burkina Faso: 6.66 South Sudan: 7.28 World: 4.88 1970 Burkina Faso: 6.69 South Sudan: 7.29 World: 4.84 1971 Burkina Faso: 6.7 South Sudan: 7.3 World: 4.69 1972 Burkina Faso: 6.72 South Sudan: 7.31 World: 4.55 1973 Burkina Faso: 6.77 South Sudan: 7.31 World: 4.42 1974 Burkina Faso: 6.84 South Sudan: 7.31 World: 4.26 1975 Burkina Faso: 6.91 South Sudan: 7.33 World: 4.07 1976 Burkina Faso: 6.95 South Sudan: 7.33 World: 3.97 1977 Burkina Faso: 7.05 South Sudan: 7.33 World: 3.84 1978 Burkina Faso: 7.15 South Sudan: 7.33 World: 3.77 1979 Burkina Faso: 7.19 South Sudan: 7.32 World: 3.76 1980 Burkina Faso: 7.22 South Sudan: 7.33 World: 3.73 1981 Burkina Faso: 7.26 South Sudan: 7.33 World: 3.71 1982 Burkina Faso: 7.25 South Sudan: 7.34 World: 3.72 1983 Burkina Faso: 7.25 South Sudan: 7.34 World: 3.59 1984 Burkina Faso: 7.25 South Sudan: 7.35 World: 3.57 1985 Burkina Faso: 7.24 South Sudan: 7.36 World: 3.53 1986 Burkina Faso: 7.22 South Sudan: 7.38 World: 3.51 1987 Burkina Faso: 7.17 South Sudan: 7.39 World: 3.48 1988 Burkina Faso: 7.11 South Sudan: 7.38 World: 3.39 1989 Burkina Faso: 7.05 South Sudan: 7.37 World: 3.35 1990 Burkina Faso: 7.01 South Sudan: 7.38 World: 3.31 1991 Burkina Faso: 6.97 South Sudan: 7.38 World: 3.13 1992 Burkina Faso: 6.94 South Sudan: 7.37 World: 3.04 1993 Burkina Faso: 6.89 South Sudan: 7.36 World: 2.97 1994 Burkina Faso: 6.84 South Sudan: 7.35 World: 2.92 1995 Burkina Faso: 6.81 South Sudan: 7.34 World: 2.87 1996 Burkina Faso: 6.78 South Sudan: 7.32 World: 2.82 1997 Burkina Faso: 6.72 South Sudan: 7.2 World: 2.78 1998 Burkina Faso: 6.66 South Sudan: 7.08 World: 2.75 1999 Burkina Faso: 6.59 South Sudan: 6.94 World: 2.72 2000 Burkina Faso: 6.52 South Sudan: 6.8 World: 2.73 2001 Burkina Faso: 6.43 South Sudan: 6.65 World: 2.69 2002 Burkina Faso: 6.34 South Sudan: 6.52 World: 2.66 2003 Burkina Faso: 6.28 South Sudan: 6.35 World: 2.64 2004 Burkina Faso: 6.22 South Sudan: 6.19 World: 2.63 2005 Burkina Faso: 6.18 South Sudan: 6.02 World: 2.61 2006 Burkina Faso: 6.17 South Sudan: 5.85 World: 2.61 2007 Burkina Faso: 6.11 South Sudan: 5.7 World: 2.6 2008 Burkina Faso: 6.05 South Sudan: 5.57 World: 2.6 2009 Burkina Faso: 5.99 South Sudan: 5.45 World: 2.59 2010 Burkina Faso: 5.94 South Sudan: 5.32 World: 2.57 2011 Burkina Faso: 5.87 South Sudan: 5.19 World: 2.55 2012 Burkina Faso: 5.79 South Sudan: 5.06 World: 2.56 2013 Burkina Faso: 5.7 South Sudan: 4.94 World: 2.53 2014 Burkina Faso: 5.6 South Sudan: 4.82 World: 2.52 2015 Burkina Faso: 5.48 South Sudan: 4.7 World: 2.49 2016 Burkina Faso: 5.33 South Sudan: 4.58 World: 2.49 2017 Burkina Faso: 5.17 South Sudan: 4.48 World: 2.46 2018 Burkina Faso: 4.92 South Sudan: 4.37 World: 2.39 2019 Burkina Faso: 4.68 South Sudan: 4.26 World: 2.35 2020 Burkina Faso: 4.44 South Sudan: 4.16 World: 2.28 2021 Burkina Faso: 4.36 South Sudan: 4.05 World: 2.25 2022 Burkina Faso: 4.28 South Sudan: 3.96 World: 2.22 2023 Burkina Faso: 4.19 South Sudan: 3.86 World: 2.2 2024 Burkina Faso: 4.11 South Sudan: 3.79 World: 2.19 1960 1980 1990 2000 2024

Unemployment rate (modelled ILO estimate)

% · 1991-2023

Burkina Faso South Sudan World

0 5 10 15 1991 Burkina Faso: 2.47 South Sudan: 12.33 World: 5.12 1992 Burkina Faso: 2.51 South Sudan: 12.37 World: 5.28 1993 Burkina Faso: 2.43 South Sudan: 12.23 World: 5.54 1994 Burkina Faso: 2.58 South Sudan: 12.33 World: 5.79 1995 Burkina Faso: 2.53 South Sudan: 12.33 World: 5.92 1996 Burkina Faso: 2.45 South Sudan: 12.31 World: 5.98 1997 Burkina Faso: 2.41 South Sudan: 12.07 World: 6.01 1998 Burkina Faso: 2.44 South Sudan: 12.1 World: 6.16 1999 Burkina Faso: 2.55 South Sudan: 12.14 World: 6.28 2000 Burkina Faso: 2.69 South Sudan: 12.31 World: 6.11 2001 Burkina Faso: 2.75 South Sudan: 12.28 World: 6.19 2002 Burkina Faso: 2.86 South Sudan: 12.24 World: 6.41 2003 Burkina Faso: 2.78 South Sudan: 12.23 World: 6.48 2004 Burkina Faso: 3.48 South Sudan: 12.26 World: 6.33 2005 Burkina Faso: 4 South Sudan: 12.27 World: 6.22 2006 Burkina Faso: 3.67 South Sudan: 12.27 World: 5.97 2007 Burkina Faso: 3.3 South Sudan: 12.27 World: 5.77 2008 Burkina Faso: 3.5 South Sudan: 12.3 World: 5.82 2009 Burkina Faso: 3.72 South Sudan: 12.44 World: 6.41 2010 Burkina Faso: 3.73 South Sudan: 12.47 World: 6.28 2011 Burkina Faso: 3.83 South Sudan: 12.59 World: 6.15 2012 Burkina Faso: 3.85 South Sudan: 12.8 World: 6.15 2013 Burkina Faso: 4.05 South Sudan: 12.67 World: 6.1 2014 Burkina Faso: 4.26 South Sudan: 12.56 World: 5.96 2015 Burkina Faso: 4.47 South Sudan: 12.46 World: 6 2016 Burkina Faso: 4.6 South Sudan: 12.85 World: 5.97 2017 Burkina Faso: 4.66 South Sudan: 12.98 World: 5.9 2018 Burkina Faso: 4.7 South Sudan: 12.85 World: 5.76 2019 Burkina Faso: 4.49 South Sudan: 12.66 World: 5.59 2020 Burkina Faso: 4.59 South Sudan: 14.25 World: 6.59 2021 Burkina Faso: 4.51 South Sudan: 13.95 World: 6.05 2022 Burkina Faso: 3.83 South Sudan: 12.48 World: 5.23 2023 Burkina Faso: 3.6 South Sudan: 12.37 World: 4.85 1991 2001 2006 2011 2023

Individuals using the internet

% · 2012-2019

Burkina Faso South Sudan World

0 20 40 60 2012 Burkina Faso: 3.73 South Sudan: 1.5 World: 33.3 2013 Burkina Faso: 5 South Sudan: 2.2 World: 35.3 2014 Burkina Faso: 6 South Sudan: 2.6 World: 37.4 2015 Burkina Faso: 6.55 South Sudan: 3 World: 39.9 2016 Burkina Faso: 7.14 South Sudan: 3.5 World: 43.6 2017 Burkina Faso: 7.79 South Sudan: 4.1 World: 46.3 2018 Burkina Faso: 8.5 South Sudan: 4.8 World: 49.4 2019 Burkina Faso: 9.27 South Sudan: 6.67 World: 53.9 2012 2013 2014 2015 2016 2017 2018 2019

Population

Indicator Burkina Faso South Sudan
Population 24.1 mn 2025
59th of 215		 12.2 mn 2025
80th of 215
Population density 84.2 /km² 2023
116th of 214		 18.2 /km² 2023
188th of 214
Population growth 2.21 % 2025
38th of 215		 2.03 % 2025
48th of 215
Life expectancy 61.3 years 2024
206th of 215		 57.7 years 2024
212th of 215
Fertility rate 4.11 2024
23rd of 215		 3.79 2024
32nd of 215
Birth rate 31.3 ‰ 2024
25th of 215		 29.2 ‰ 2024
34th of 215
Infant mortality 43.6 ‰ 2024
177th of 196		 71.9 ‰ 2024
196th of 196
Urban population 28.9 % 2025
196th of 215		 21.7 % 2025
208th of 215
Aged 65+ 2.7 % 2025
201st of 215		 3.1 % 2025
190th of 215
Living in cities 26.8 % 2025
151st of 215		 33.5 % 2025
125th of 215
Living in towns 24.8 % 2025
151st of 215		 31.9 % 2025
103rd of 215
Living in rural areas 48.3 % 2025
21st of 215		 34.6 % 2025
63rd of 215

Human development

Indicator Burkina Faso South Sudan
Human Development Index 0.459 2023
186th of 193		 0.388 2023
193rd of 193
Inequality-adjusted HDI 0.273 2023
164th of 169		 0.226 2023
169th of 169
Planetary-adjusted HDI 0.453 2023
148th of 156		 0.383 2023
155th of 156
Gender Inequality Index 0.555 2023
146th of 172		 -

Economy

Indicator Burkina Faso South Sudan
GDP 27.6 bn US$ 2025
118th of 186		 12 bn US$ 2015
GDP per capita 1,148 US$ 2025
170th of 186		 1,080 US$ 2015
GDP per capita (PPP) 3,072 int. $ 2025
173rd of 185		 1,155 int. $ 2015
GNI per capita 980 US$ 2025
169th of 182		 1,050 US$ 2015
GDP growth 5.3 % 2025
41st of 186		 -10.8 % 2015
Inflation -0.6 % 2025
161st of 165		 91.4 % 2024
Trade 65.0 % 2025
85th of 138		 65.6 % 2015
Exports 35.0 % 2025
73rd of 138		 36.7 % 2015
FDI inflows -0.9 % 2024
179th of 192		 0.0 % 2015
Manufacturing 6.6 % 2025
104th of 132		 3.5 % 2015
Agriculture 19.9 % 2025
31st of 158		 10.4 % 2015
Tax revenue 18.7 % 2024
42nd of 89		 -
Government debt 64.2 % 2024
27th of 56		 -
Military spending 4.7 % 2024
12th of 147		 2.0 % 2024
60th of 147

Labour

Indicator Burkina Faso South Sudan
Unemployment 3.5 % 2025
56th of 181		 12.4 % 2023
Youth unemployment 6.4 % 2025
36th of 181		 18.5 % 2023
Women in the labour force 64.1 % 2025
24th of 181		 70.4 % 2023
Jobs in agriculture 51.8 % 2025
21st of 181		 63.8 % 2023
Weekly hours worked 48.2 h 2025
7th of 181		 37.6 h 2023
Youth NEET rate 24.9 % 2025
133rd of 181		 34.1 % 2023
Labour income share 44.1 % 2022 37.6 % 2023
Output per hour 2.6 $ 2025
172nd of 181		 3.6 $ 2023

Health

Indicator Burkina Faso South Sudan
Health spending 7.8 % 2023
64th of 192		 11.6 % 2023
11th of 192
Health spending per person 72 US$ 2023
159th of 191		 73 US$ 2023
158th of 191
Physicians 0.15 /1,000 2022
108th of 125		 0.04 /1,000 2022
123rd of 125
Under-5 mortality 74.9 ‰ 2024
186th of 196		 96.7 ‰ 2024
192nd of 196
Maternal mortality 242 /100k 2023
166th of 194		 692 /100k 2023
192nd of 194
Tobacco use 11.6 % 2024
46th of 166		 -

Food

Indicator Burkina Faso South Sudan
Calories per person 2,814 kcal 2024
101st of 155		 2,458 kcal 2024
130th of 155
Protein supply 92.3 g 2022
86th of 174		 -
Animal protein supply 16.6 g 2022
148th of 174		 -
Fat supply 60.5 g 2022
139th of 174		 -
Food insecurity 41.2 % 2024
98th of 134		 88.8 % 2024
134th of 134
Severe food insecurity 7.3 % 2024
78th of 124		 62.9 % 2024
124th of 124
Cereal import dependency 20.5 % 2022
109th of 160		 -

Education

Indicator Burkina Faso South Sudan
Literacy 41.6 % 2023 -
Secondary enrolment 30.0 % 2024
106th of 108		 122.1 % 2024
8th of 108
Tertiary enrolment 10.0 % 2024
120th of 128		 -
Education spending 5.3 % 2023
21st of 121		 1.6 % 2016
Expected schooling 8.7 yrs 2023
181st of 195		 5.6 yrs 2023
195th of 195
Mean schooling 2.3 yrs 2023
190th of 193		 5.7 yrs 2023
163rd of 193

Society

Indicator Burkina Faso South Sudan
Income inequality 37.4 2021
81st of 93		 44.0 2016
Extreme poverty 42.1 % 2021
91st of 93		 76.5 % 2016
Internet use 28.3 % 2024
167th of 182		 6.7 % 2019
Mobile subscriptions 116.6 /100 2024
84th of 151		 46.6 /100 2023
Electricity access 34.0 % 2024
206th of 213		 5.4 % 2024
213th of 213
Women in parliament 18.3 % 2025
131st of 184		 32.4 % 2025
60th of 184

Refugees

Indicator Burkina Faso South Sudan
Refugees hosted 40,996 2025
68th of 177		 601,818 2025
13th of 177
Refugees hosted per 1,000 1.7 ‰ 2025
74th of 177		 49.4 ‰ 2025
6th of 177
Asylum-seekers hosted 1,957 2025
87th of 177		 3,246 2025
79th of 177
Refugees from the country 351,209 2025
14th of 199		 2.4 mn 2025
5th of 199
Refugees from per 1,000 14.6 ‰ 2025
15th of 199		 195.8 ‰ 2025
1st of 199

Governance

Indicator Burkina Faso South Sudan
Control of corruption 42.7 /100 2024
108th of 207		 6.1 /100 2024
207th of 207
Government effectiveness 34.3 /100 2024
169th of 205		 9.1 /100 2024
205th of 205
Rule of law 41.8 /100 2024
158th of 207		 23.0 /100 2024
205th of 207
Regulatory quality 46.6 /100 2024
140th of 205		 24.4 /100 2024
203rd of 205
Voice and accountability 40.0 /100 2024
151st of 205		 23.7 /100 2024
200th of 205
Political stability 33.3 /100 2024
196th of 207		 40.4 /100 2024
185th of 207

Environment

Indicator Burkina Faso South Sudan
CO₂ per capita 0.28 t 2024
27th of 202		 -
Fossil CO₂ emissions 6.5 Mt 2024
127th of 204		 1.7 Mt 2024
158th of 204
Share of global CO₂ 0.02 % 2024
127th of 204		 0.00 % 2024
158th of 204
Cumulative CO₂ 0.1 Gt 2024
147th of 204		 0.0 Gt 2024
162nd of 204
GHG per capita 1.48 t 2024
38th of 202		 -
Renewable energy 71.4 % 2022
26th of 211		 32.4 % 2021
76th of 211
Forest area 22.2 % 2023
129th of 212		 11.3 % 2023
157th of 212
PM2.5 exposure 37.3 µg/m³ 2023
173rd of 200		 23.7 µg/m³ 2023
136th of 200
Water stress 7.8 % 2022
75th of 176		 4.2 % 2022
50th of 176
Land area 273,600 km² 2023
74th of 214		 631,930 km² 2023
41st of 214

Energy

Indicator Burkina Faso South Sudan
Renewable electricity 17.2 % 2024
128th of 190		 1.8 % 2024
177th of 190
Wind and solar 6.5 % 2024
91st of 190		 1.8 % 2024
133rd of 190
Nuclear power 0.0 % 2024
42nd of 180		 0.0 % 2024
155th of 180
Low-carbon electricity 17.2 % 2024
132nd of 190		 1.8 % 2024
177th of 190
Fossil electricity 82.8 % 2024
132nd of 190		 98.2 % 2024
177th of 190
Coal power 0.0 % 2024
13th of 188		 0.0 % 2024
90th of 188
Carbon intensity of power 561 g/kWh 2024
128th of 190		 646 g/kWh 2024
163rd of 190
Electricity per capita 0.14 MWh 2024
174th of 191		 0.05 MWh 2024
186th of 191

Sources: World Bank (World Development Indicators, Worldwide Governance Indicators), ILO modelled estimates, FAO (FAOSTAT), UNDP (Human Development Report), UNHCR Refugee Population Statistics Database, Ember (electricity), the Global Carbon Project (CO₂) and the UN World Population Prospects and World Urbanization Prospects, under CC BY 4.0 and CC BY 3.0 IGO. Ranks are computed by StatsNode in the latest year for which at least half of the countries have a value. Sources and licences.