Year % of GNI 1981 26.110689983437823 1982 26.413521420844315 1983 27.48531742778233 1984 22.03936377556153 1985 20.301928322691047 1986 19.460343417825023 1987 24.177480002024634 1988 15.143097884294452 1989 20.613813445467056 1990 23.30374817389997 1991 12.69733387289858 1992 15.91903901978348 1993 20.364005418346657 1994 14.319788073413056 1995 15.073977597450005 1996 12.909863912719475 1997 11.665676399462843 1998 10.076055532975174 1999 9.393907383042283 2000 7.915327035301423 2001 11.353620452379767 2002 9.674258291947508 2003 10.959161302227963 2004 8.717689006194917 2005 12.59347552390162 2006 7.585544023399904 2007 9.126308574867812 2008 7.155273867197254 2009 10.919806905662886 2010 17.50939461131696 2011 20.761990635137455 2012 16.134092323692016 2013 17.553784285224943 2014 18.13017338424378 2015 15.491998565013168 2016 19.53937798819996 2017 18.22467983745933 2018 18.779299830552425 2019 19.50791768745276 2020 31.031378398647924 2021 22.638617123809574 2022 54.725767417865235