| Country or Area | Year | Value | |
|---|
| Afghanistan | 2020 | 4.97282537449934 |
| Afghanistan | 2019 | 4.27573619654266 |
| Afghanistan | 2018 | 3.72485527466578 |
| Afghanistan | 2017 | 3.65259208973618 |
| Afghanistan | 2016 | 3.6802510519657003 |
| Afghanistan | 2015 | 3.8331421868208397 |
| Afghanistan | 2014 | 5.10979266008033 |
| Afghanistan | 2013 | 4.31176435442433 |
| Afghanistan | 2012 | 4.696372864714 |
| Afghanistan | 2011 | 8.30276004557373 |
| Afghanistan | 2010 | 9.35459613289025 |
| Afghanistan | 2009 | 9.86038937465642 |
| Afghanistan | 2008 | 11.165408787601699 |
| Afghanistan | 2007 | 11.9484046164291 |
| Afghanistan | 2006 | 10.3603817107467 |
| Afghanistan | 2005 | 12.6897579454611 |
| Afghanistan | 2004 | 16.134336001725 |
| Africa Eastern and Southern | 2022 | 3.719158143705439 |
| Africa Eastern and Southern | 2021 | 4.0251553026831255 |
| Africa Eastern and Southern | 2020 | 4.265079231403222 |
| Africa Eastern and Southern | 2019 | 4.196392323511367 |
| Africa Eastern and Southern | 2018 | 4.465746074042002 |
| Africa Eastern and Southern | 2017 | 5.802735695075643 |
| Africa Eastern and Southern | 2016 | 5.712270936523695 |
| Africa Eastern and Southern | 2015 | 5.875702355497553 |
| Africa Eastern and Southern | 2014 | 5.862546649350824 |
| Africa Eastern and Southern | 2013 | 5.81136314650803 |
| Africa Eastern and Southern | 2012 | 5.0610793267476915 |
| Africa Eastern and Southern | 2011 | 5.207415051894165 |
| Africa Eastern and Southern | 2010 | 5.117671757736122 |
| Africa Eastern and Southern | 2009 | 6.833461986335995 |
| Africa Eastern and Southern | 2008 | 6.357918608275461 |
| Africa Eastern and Southern | 2007 | 6.480874998518962 |
| Africa Eastern and Southern | 2006 | 6.868202351080066 |
| Africa Eastern and Southern | 2005 | 6.691637418998399 |
| Africa Eastern and Southern | 2004 | 7.181604482167811 |
| Africa Eastern and Southern | 2003 | 7.060699296107429 |
| Africa Eastern and Southern | 2002 | 7.8306277629620915 |
| Africa Eastern and Southern | 2001 | 7.688271427437126 |
| Africa Eastern and Southern | 2000 | 7.632205439936288 |
| Africa Western and Central | 2021 | 7.294454477454841 |
| Africa Western and Central | 2020 | 6.130562366199686 |
| Africa Western and Central | 2019 | 5.801250316279666 |
| Africa Western and Central | 2018 | 5.929125388370175 |
| Africa Western and Central | 2017 | 5.98702724050372 |
| Africa Western and Central | 2016 | 5.768744077366638 |
| Africa Western and Central | 2015 | 4.689870441641684 |
| Africa Western and Central | 2014 | 4.329532129605442 |
| Africa Western and Central | 2013 | 4.509399465054444 |
| Africa Western and Central | 2012 | 4.399935560404339 |
