Year % of GNI 1970 1.2940351949891067 1971 0.6278201227849356 1972 0.7845491706783022 1973 0.8209906976725788 1974 1.2351427840740705 1975 1.7499292357861567 1976 1.2430048692467093 1977 1.5622417007496547 1978 2.504832374683811 1979 1.8447939705936844 1980 3.0253220656609745 1981 2.5013920324103567 1982 3.2098742270857814 1983 3.736156581180694 1984 4.682696887299972 1985 5.627876326789678 1986 5.196651385257938 1987 5.771487188313624 1988 6.149108558695487 1989 5.798319058951826 1990 6.276571708050918 1991 5.933988396131353 1992 4.0981343834969435 1993 3.4658031247408663 1994 3.917860054823321 1995 2.2491759477430904 1996 1.412787816975916 1997 1.0442687221445084 1998 1.3636657506612697 1999 1.5549451994503443 2000 1.5476599122062942 2001 1.1218109371854195 2002 1.0255886413640638 2003 0.7811154385126904 2004 0.47520450257158686 2005 0.49959772837939886 2006 0.4933191030943632 2007 0.8776203193054716 2008 1.7365999684421474 2009 2.749777996955155 2010 1.953170381958292 2011 7.109579750312819 2012 2.9641908486952593 2013 2.836782691294367 2014 3.2457066380384965 2015 7.726563410198422 2016 2.2823974626508727 2017 3.4310281832149134 2018 2.0523663220140826 2019 4.229020745242808 2020 6.620192273551923 2021 1.210403748635272 2022 3.6691510168081476