Year % of GNI 1970 19.813578323668914 1971 25.033554171287562 1972 22.97876847770098 1973 34.65381329649548 1974 25.619965345410296 1975 30.12104289015887 1976 35.107774869863135 1977 53.52653244736585 1978 62.68691291272203 1979 58.67769149571951 1980 47.83761639219928 1981 43.37914686456784 1982 40.81517485556551 1983 34.81741993466778 1984 30.54674844944011 1985 32.38084487339691 1986 36.53241486072802 1987 37.70235439492992 1988 46.12310653673394 1989 50.84794515868134 1990 47.09541600821555 1991 65.99780648154574 1992 59.66268300268089 1993 54.51671303337483 1994 74.10099262261522 1995 83.51100158243928 1996 75.82278094668982 1997 67.22889836200535 1998 66.43954120506014 1999 60.84815374170708 2000 48.88907076516868 2001 42.80871288150767 2002 42.24526365466585 2003 36.375674134560214 2004 27.42591187309137 2005 17.41176285518286 2006 5.243707721358135 2007 4.604393113302129 2008 3.678144709599071 2009 5.459484655672578 2010 4.511629187139252 2011 3.0579087908382836 2012 2.6721828968551993 2013 2.551361231472125 2014 2.643306314457827 2015 2.8895139789306716 2016 3.447253237580998 2017 3.4058570743518617 2018 3.349122837455517 2019 3.2778382055750512 2020 3.625978705191334 2021 4.595301647424009 2022 3.733706679632575