Year % of GNI 1970 0.4620977474142861 1971 0.4351432931605346 1972 0.5662998899060538 1973 0.5646296667982956 1974 0.5033908143730349 1975 0.564274477419648 1976 0.4840565349524911 1977 0.4933172173123921 1978 0.49022944019407155 1979 0.5292192213604334 1980 1.1515067111436699 1981 1.1119044385471746 1982 1.1336612064501383 1983 1.1350331884838587 1984 1.486537787391278 1985 1.9045270986968728 1986 1.8112191401641065 1987 1.5300902233283222 1988 1.6409649290915231 1989 1.4806473423001854 1990 1.1086253235270076 1991 1.4840498676010827 1992 0.9994969878580735 1993 1.1936829707024235 1994 2.317069930533138 1995 2.0445216064954437 1996 1.8714807942858354 1997 2.1031686982669844 1998 1.9327585228900452 1999 1.9141322795618292 2000 1.6015949094668895 2001 1.2072622465049188 2002 1.2388711053664552 2003 1.0064226411800679 2004 0.9766745492845169 2005 0.7623007890153183 2006 0.6965108281957756 2007 1.5240676741615244 2008 2.16200611121735 2009 3.3369249756406427 2010 4.514827211443737 2011 5.298340104644426 2012 6.5387018214814825 2013 7.85020018039083 2014 9.40520308626535 2015 14.238577760763786 2016 10.074856332705796 2017 11.65570694771622 2018 19.492643688351887 2019 15.10304759133776 2020 12.666766681454162 2021 2.649776081107148 2022 3.018159936432901