Year % of GNI 1970 1.8452335149804118 1971 1.2297718289129902 1972 1.3926140419552404 1973 1.535351049077831 1974 1.1584241987497632 1975 1.2304239437187845 1976 1.3333527354050838 1977 1.4855274365999933 1978 1.8088103822257313 1979 1.9055041793478087 1980 1.9236618576047528 1981 2.1208009785840503 1982 2.181510738428595 1983 2.4191742890780144 1984 2.3224549068752607 1985 2.5136730356206187 1986 2.9685659749682833 1987 2.77281585665177 1988 2.973277245441299 1989 3.006507821380085 1990 3.2562785518431525 1991 3.587945357236572 1992 3.6571550807618047 1993 3.6799300760932194 1994 3.8961504768731205 1995 3.8343130172194706 1996 3.4304526458107785 1997 3.342800398988164 1998 3.142280996336343 1999 2.84650461458897 2000 2.9243488922754257 2001 2.794494391422145 2002 3.0679523417490158 2003 3.4180824406244072 2004 2.5590100035723493 2005 2.4250843689654302 2006 1.917073911787142 2007 1.6648772821285276 2008 1.5951483664580954 2009 1.251093971595667 2010 1.096767940936795 2011 1.0475317587181079 2012 0.9723416844588186 2013 1.0721072977199742 2014 1.1964877361934105 2015 1.1273745318712354 2016 1.4543190418385945 2017 1.2731293641039378 2018 1.4801854715345335 2019 1.5300800236237215 2020 1.642194763357089 2021 1.5158959096196838 2022 1.4538175325246994