Year % of GNI 1974 14.9656695818471 1975 9.92017835925825 1976 18.7432714826651 1977 18.0088424168326 1978 18.4531270087671 1979 24.645131819479 1980 20.1785960582678 1981 15.3117324642213 1982 13.374688172544 1983 15.7411824694427 1984 18.0218113409854 1985 12.9850079496245 1986 10.7600252217704 1987 17.4045226396236 1988 19.0491168925094 1989 18.8181409328148 1990 18.4611686965366 1991 17.1003329860315 1992 19.1094152371645 1993 21.5788746960536 1994 21.3928283990569 1995 19.5729159844025 1996 21.8186333052108 1997 21.0422107324576 1998 19.2382887880445 1999 18.9743610845825 2000 19.9475519865678 2001 15.1740395025825 2002 16.3979291787879 2003 18.9452787526734 2004 20.3023815798688 2005 22.74873841338 2006 24.149992666793 2007 24.2477989994461 2008 24.3797684822405 2009 16.8784904384115 2010 17.1188520748632 2011 18.1828787607812 2012 15.1147558543185 2013 12.8208682357428 2014 11.7652505252163 2015 9.73689975961676 2016 8.97551330695071 2017 8.67754536148583 2018 6.09171773177899 2019 4.39669867646848 2020 3.4669290766251 2021 5.54890942732156