Year % of GNI 1995 19.4493911026396 1996 13.011733408279634 1997 8.437726686586215 1998 4.599214642532595 1999 19.7251991064131 2000 17.435569405277736 2001 20.42921492731745 2002 19.338540429713856 2003 15.10716312397347 2004 21.150991261757238 2005 20.17632127764314 2006 19.481712572721822 2007 21.831019147168757 2008 21.240482015451317 2009 13.305703890181588 2010 15.856232579913515 2011 13.068763905670613 2012 15.32911282006114 2013 18.02477978165549 2014 16.142381372136178 2015 17.31498835696491 2016 17.410238433656353 2017 15.343781722223236 2018 15.15633918353624 2019 14.76062630650697 2020 15.591995716258333 2021 14.150496701099307 2022 9.981660763382893 2023 8.831681005581183