Year % of GNI 1970 1.3831508390087 1971 1.75790739718822 1972 1.27252238352631 1973 0.973899657704286 1974 0.965808202644474 1975 0.794111371127531 1976 0.676252712857885 1977 0.993798071039135 1978 1.46817539405143 1979 2.3006372524761 1980 4.09728084788448 1981 4.49355271998026 1982 3.98732163775704 1983 4.7071176672919 1984 4.51476331083886 1985 4.81644269928215 1986 5.13260564917957 1987 4.76931168762609 1988 4.36187096373747 1989 4.35224956387298 1990 4.53107939178811 1991 4.76466645689314 1992 5.94893099225439 1993 5.9199401971743 1994 6.08955154820039 1995 6.00143296484591 1996 5.55077253984755 1997 5.79212145027985 1998 7.57202034201665 1999 7.50406547000213 2000 7.70362898992259 2001 6.10574891603797 2002 5.81123530310708 2003 5.53567208595418 2004 5.43466179564068 2005 5.08286800092906 2006 4.52898972225734 2007 4.48434467920509 2008 5.36942567726465 2009 7.63670806240562 2010 11.4918699685689 2011 14.1888070146259 2012 14.0592356535378 2013 13.0312847046339 2014 11.4324369519708 2015 10.2617668708545 2016 11.1471130049119 2017 11.7681168019105 2018 12.4949046711701 2019 12.7485824914622 2020 13.3443566912418 2021 13.6969687447291