Year % of GNI 1970 5.272643251449075 1971 4.981091967249236 1972 4.850284767235753 1973 3.7025425899652555 1974 2.732695594747267 1975 2.4677901956501125 1976 2.347253921961584 1977 3.7110739984856393 1978 4.560537537271647 1979 5.506994647319686 1980 6.474652880480171 1981 7.406833546927325 1982 7.207760905765798 1983 7.9104108417771295 1984 8.837342508320871 1985 9.266700231310017 1986 10.206058860488543 1987 12.000836655452655 1988 11.025219620564357 1989 11.435504564872872 1990 12.046672865987663 1991 10.942198898563813 1992 9.083895420704009 1993 9.882128539335353 1994 9.8812281436329 1995 8.61645997143734 1996 7.901566337631724 1997 7.1194815121562085 1998 6.82814632969833 1999 7.004408050040199 2000 9.297340061369567 2001 6.5972730686137515 2002 6.7362564502798525 2003 6.155182144530146 2004 7.152680031628567 2005 6.678027611408867 2006 7.774130769329628 2007 6.862887507506782 2008 4.798668494613894 2009 5.1423349733227095 2010 5.375636311183022 2011 5.797925799267155 2012 5.77607191252388 2013 5.300373601186868 2014 4.086902662837972 2015 4.1289332701396315 2016 4.80532496185152 2017 7.468057203871129 2018 7.227259493147689 2019 7.864555103654053 2020 7.914979601734961 2021 9.496844806826397 2022 9.528851549575263