Year % of GNI 1960 28.530172972486938 1961 31.276051947707582 1962 17.440027590300307 1963 14.108418629710162 1964 23.10778171908778 1965 25.519796034589042 1966 15.596471853590515 1967 14.528881829204964 1968 11.22652678213652 1969 10.659847427975844 1970 6.157637931034483 1971 1.6629198409423864 1972 6.616200374826612 1973 5.448438330306385 1974 6.214713971604294 1990 4.569261702175495 1991 4.31688079102886 1992 4.0941951288442056 1993 3.8580631060143227 1994 4.118987019922984 1995 3.2452330640263747 1996 1.9050994541037245 1997 1.5333002588644036 1998 2.1397930170472828 1999 1.7822122270609375 2000 0.7408466853175546 2001 1.772239717121368 2002 1.5437290314052794 2003 1.5860707847547149 2004 0.7905693765100202 2005 1.391669481798991 2006 1.052239823430568 2007 1.450513328920826 2008 2.1362868234192582 2009 1.5983445326119976 2010 2.163502105250408 2011 2.740415059685315 2012 1.9605256139235312 2013 2.6769365446677904 2014 2.0390216885849983 2015 2.3728614789184843 2016 4.088770534674826 2017 3.5933494951419496 2018 2.7910961459448482 2019 1.757373986666809 2020 2.930866235789784 2021 2.7856735978136307 2022 1.8696936242313327