Year % of GNI 1970 1.3158703057256105 1971 1.2230560020753563 1972 0.5267633258294828 1973 1.1635819055047851 1974 0.7629280348987905 1975 0.5759986126234735 1976 0.740583373628904 1977 0.8834256982576808 1978 0.6864505816036317 1979 0.8305948297396022 1980 0.9404592772593648 1981 1.3832917060243537 1982 1.4938951014778215 1983 1.5997847049018008 1984 2.54766018789971 1985 3.8861283764495664 1986 3.3748792382623285 1987 3.355961407821923 1988 3.6491643570130043 1989 3.189460789812979 1990 2.5442119007861486 1991 1.6653501801895478 1992 2.0714074497531803 1993 2.7910460117393168 1994 4.2843685595542285 1995 3.262832848475064 1996 4.264081076419629 1997 3.2092909455889407 1998 2.858224698867764 1999 3.137442482105415 2000 3.1978324645884015 2001 2.4321562883556656 2002 2.2216247452862588 2003 1.671003833615244 2004 1.861957801112456 2005 1.6408992769378887 2006 1.269038202595995 2007 0.8106398973618263 2008 0.7256918363860132 2009 0.7014261593160623 2010 0.6714079903478571 2011 0.5619411251339028 2012 0.5037152435416344 2013 0.8633502636382755 2014 0.7795642774993574 2015 0.8871581092847542 2016 0.9731549937594517 2017 1.0947607220723858 2018 1.099751171706926 2019 1.273547059050117 2020 1.5409614178744075 2021 1.5898399100438558 2022 1.7448900935655463