Year % of GNI 1970 2.0205399771444554 1971 1.907766633675712 1972 1.9466785314237258 1973 2.0043586363303025 1974 1.6984050715591756 1975 1.8533463075619427 1976 2.589617442543061 1977 4.480862042304646 1978 6.338756025503185 1979 7.698860731849832 1980 3.972552334551375 1981 3.3739132260943543 1982 5.474436216124821 1983 7.785733776810582 1984 6.487930648092631 1985 5.6887261157418445 1986 6.792341947703999 1987 6.150635733500492 1988 5.697577560883479 1989 4.464478246764295 1990 3.1126823042951206 1991 3.0472127064903747 1992 4.333703377368272 1993 2.0448105593245907 1994 2.1772723921054915 1995 4.222107832578986 1996 6.3980377481832384 1997 5.542349526777097 1998 3.2392570875070255 1999 2.598345935527118 2000 3.4114700069054966 2001 3.1266522275051787 2002 2.426772322871477 2003 2.9131187959775007 2004 3.0953915064985607 2005 2.5692082300730092 2006 3.8622711982363405 2007 1.979922256187237 2008 1.923612949320409 2009 1.9257427634138857 2010 1.8111423840020222 2011 1.6273496483026222 2012 3.028770051750877 2013 1.7429559815007167 2014 1.4472412928926648 2015 2.2134644683772122 2016 3.7659656239594606 2017 3.1318477341632427 2018 2.528935702338024 2019 3.3341685998947983 2020 3.867677989698374 2021 4.066185440354394 2022 1.7153768562537273