Year % of GNI 1970 26.38856344746217 1971 26.434012798173406 1972 23.72953626048347 1973 21.966724989013784 1974 21.433881868922068 1975 20.285986382599404 1976 22.191812280227417 1977 26.383806565333046 1978 29.480806333570865 1979 30.31016408866256 1980 32.42065606696276 1981 34.013054946674174 1982 33.699783222877734 1983 36.068382354522186 1984 31.93291156155038 1985 75.62129693681409 1986 64.01222691999357 1987 72.58321770818262 1988 80.60085594849757 1989 65.26432477331518 1990 66.35177327487625 1991 48.61321178049718 1992 42.244175102149725 1993 40.02993769465776 1994 31.271514052763116 1995 28.56596627243761 1996 25.203014296502126 1997 22.422117183858678 1998 21.528043337000426 1999 22.657938943597703 2000 19.849988152273866 2001 21.266114462363422 2002 25.30241137658951 2003 36.38079296529781 2004 38.12638458101174 2005 22.88450112074243 2006 25.59109652236896 2007 25.723491361615665 2008 22.877604197412786 2009 25.470340247841726 2010 25.992379458264043 2011 27.068140876805803 2012 37.92177581431194 2013 40.123735595968014 2014 41.08925914506177 2015 39.173475308252655 2016 39.04875237789797 2017 38.653768496784295 2018 38.923340247770454 2019 41.35100628167361 2020 54.065473221511084 2021 49.01510171539184 2022 44.27424618757089