Year % of GNI 1970 1.3612836288802492 1971 1.1758101860362495 1972 1.5595497037975632 1973 2.115064418655592 1974 1.280146961777402 1975 1.409977440600315 1976 1.3390825270697615 1977 1.4361848503856505 1978 2.4143668320207605 1979 2.528528190125582 1980 1.6376165175198891 1981 2.1654606445975895 1982 2.5297871040329927 1983 3.2530065341054986 1984 3.3643270322246606 1985 3.6742529303188443 1986 5.710939002902588 1987 6.384308367627126 1988 6.130736137764487 1989 4.725294413424962 1990 5.820366127916419 1991 5.347374875976602 1992 6.2133816715908585 1993 6.757479251462832 1994 4.844807968345672 1995 4.936836859267986 1996 4.124323171532662 1997 3.320323279018843 1998 4.243135031341919 1999 4.387611396820138 2000 4.80204923450487 2001 6.326572139415903 2002 5.98272622297506 2003 5.9233932834912775 2004 6.591783470106308 2005 4.8872114264327875 2006 6.081765876378787 2007 2.9865048713639895 2008 3.250725443989533 2009 3.403998360073942 2010 4.2244946309133935 2011 2.981638036563289 2012 1.8835864025835949 2013 1.7200708156385924 2014 1.5524355430394516 2015 1.6353674801481957 2016 1.8390200268376566 2017 1.4434141375964087 2018 1.2199257060430706 2019 1.5741788818963616 2020 1.4523701879521396 2021 1.9004791209240528 2022 1.2864868364810311