Year % of GNI 1970 0.3457004617366663 1971 0.28856985725272893 1972 0.12377451842360569 1973 0.23652251875944438 1974 0.37803000705706286 1975 0.43370140411474517 1976 0.16718126306312894 1977 0.35499103075333927 1978 0.7963666612131943 1979 0.6797569606553404 1980 0.9880732931347571 1981 1.199183252526309 1982 1.0517454543239948 1983 0.47721865671241326 1984 0.7087842542260326 1985 0.5381875961987298 1986 6.115122145364834 1987 7.740890877033032 1988 7.621484116067771 1989 10.75653793103768 1990 7.797479847425379 1991 8.92425392116821 1992 9.622606903940278 1993 8.733328328341154 1994 7.371589838298359 1995 7.840030458711486 1996 5.368188635398137 1997 7.0549382549854105 1998 7.033143091699561 1999 4.787386015234378 2000 3.57238091435809 2001 7.162382083346197 2002 5.954352681487907 2003 5.243616556747952 2004 5.461370168131926 2005 4.81873417759532 2006 4.142420235608315 2007 3.3138398703900283 2008 4.625214277012627 2009 3.7101994842972 2010 3.2608962909051242 2011 3.038600063486463 2012 8.424354680779716 2013 5.863673307412165 2014 6.62936045086153 2015 6.235147107754754 2016 6.712240137781461 2017 4.59643847497385 2018 5.712315835001718 2019 4.3684300588812235 2020 5.7064099401975525 2021 4.281722358376585 2022 2.675362095504908