Year % of GNI 1970 0.20044196460323213 1971 0.20411365016090882 1972 0.20048286303640744 1973 0.9023002754931722 1974 0.48586794218246787 1975 0.39374395749861124 1976 0.4306876339012976 1977 0.6610048770880681 1978 0.5634938090080543 1979 0.5027866122949848 1980 0.5390921309404997 1981 0.6305267452838282 1982 0.8804523315869703 1983 1.0939731796593273 1984 1.491040686683262 1985 2.5204317740256688 1986 1.624437737887622 1987 1.550510532385266 1988 2.114357769628205 1989 1.7767397941664154 1990 1.6075964692558034 1991 1.1174833550523349 1992 1.6897057538750977 1993 2.3665571095691775 1994 3.7462012073919686 1995 2.914446861845409 1996 3.881293660702266 1997 2.363384173337453 1998 2.1652629741941447 1999 2.5053554791429624 2000 2.302732328317559 2001 1.8855176838953431 2002 1.6328250877186448 2003 1.2005276058403618 2004 1.4749120456155183 2005 1.2996849776484787 2006 1.2237031577843898 2007 0.7903468418000112 2008 0.7223204600054836 2009 0.692849736204631 2010 0.6632194606850091 2011 0.5428107883205129 2012 0.4861253387746226 2013 0.8217096222536653 2014 0.7193108787325532 2015 0.8174024313561006 2016 0.881065812859942 2017 0.974680335170393 2018 0.9720016719593003 2019 1.135540243572239 2020 1.3903463093065072 2021 1.4650758657650012 2022 1.5997102056380366