Year % of GNI 1970 7.450171575419673 1971 9.311945667161963 1972 6.2000865693654585 1973 7.366037293733155 1974 11.581772778358136 1975 16.398609922164795 1976 17.830817514500414 1977 21.950139480489007 1978 25.08887369007619 1979 30.780598086673667 1980 27.381545644704396 1981 29.67057380012548 1982 26.49775484606291 1983 26.545437622812518 1984 21.27740096794789 1985 21.067491595419728 1986 24.850341654819665 1987 30.185040309472626 1988 26.933568682440022 1989 27.991643246846703 1990 29.880768598646583 1991 32.88975244112344 1992 34.04735412097708 1993 48.64276577054594 1994 66.8994960173519 1995 58.43214667624312 1996 59.26781115351305 1997 62.62092508944301 1998 59.05421002037361 1999 72.35359995040325 2000 80.15351208526755 2001 64.89897439992053 2002 65.8772694191459 2003 67.38923080565587 2004 44.33049753118069 2005 28.97463638280487 2006 28.26704695644183 2007 24.813971261149735 2008 20.658644605782182 2009 21.051565328261624 2010 20.921961313643106 2011 19.66384145271534 2012 19.44508481298011 2013 23.54394559138814 2014 27.92568491722926 2015 26.356370691121388 2016 28.833554635769293 2017 31.75685883780226 2018 28.72115347788532 2019 28.86825389873648 2020 33.0177803402869 2021 30.894034167755493 2022 27.73284805465166