Year % of GNI 1970 1.11516639576376 1971 1.376060368161529 1972 1.3477682232586072 1973 1.8341902275928663 1974 1.6843091434435433 1975 1.768783643400461 1976 1.8797138509900013 1977 2.575858417554437 1978 2.956084927028087 1979 3.1902740208044067 1980 5.026004792541798 1981 5.1033069075590385 1982 6.237271186466353 1983 5.402982498741111 1984 5.898601239567469 1985 7.898018394018605 1986 5.75937448083731 1987 5.04837036062683 1988 5.530326824666161 1989 3.756427194116612 1990 4.380771404345859 1991 3.7848679048508562 1992 3.455733130654325 1993 3.036564043311003 1994 4.536711721912315 1995 4.179743302908559 1996 4.843019823266902 1997 4.984016626147141 1998 4.814809144685813 1999 4.942466036762117 2000 5.61254764078535 2001 3.3402774554380046 2002 2.9810089948320297 2003 2.8270101696862437 2004 3.3311403454557844 2005 4.305135751567556 2006 3.626586175946308 2007 2.075042258170615 2008 1.6039720188681081 2009 1.4461189481340473 2010 0.7456299480764454 2011 1.0940692528234108 2012 0.8010008508667571 2013 0.824406028851668 2014 1.486367888295302 2015 1.6018525603446052 2016 2.597675800266295 2017 2.034073497284388 2018 2.693936002700582 2019 2.929324908396827 2020 3.280679978994308 2021 4.3805633508981625 2022 4.27690288097534