Year % of GNI 1970 0.628290431134171 1971 0.7229342935290579 1972 0.9957077667540561 1973 1.0055375258666395 1974 1.060167596561747 1975 1.9888876623952796 1976 1.1523060623030914 1977 1.3023269220134122 1978 1.3868308483896514 1979 1.1313948030958545 1980 1.2464460524386223 1981 0.7876228201244004 1982 1.3217805732645604 1983 2.1924479417835556 1984 2.8466393192742334 1985 4.640231495825399 1986 3.532152885861697 1987 4.205303362190637 1988 3.0854640720493243 1989 2.57086846297734 1990 2.851824936159794 1991 2.200758553542317 1992 2.26523295184872 1993 2.000456981972892 1994 2.273042389147759 1995 1.9410921407325274 1996 3.2826704283478945 1997 2.0880132766940536 1998 1.544735139542613 1999 1.3986520320264162 2000 1.239310375523154 2001 0.9550308809692657 2002 1.2607747828913445 2003 0.728239848947702 2004 0.5960421374218817 2005 0.5744851211175537 2006 0.5845543802063005 2007 0.45629992499114835 2008 0.6726403431495344 2009 0.4486246510986214 2010 0.6215479675025409 2011 0.48836133156571915 2012 0.3874561809442202 2013 1.3449963785554775 2014 0.3781640167046422 2015 1.1970304817860107 2016 1.158532056730609 2017 1.1751981793614432 2018 1.1339893336418665 2019 1.1425192799314743 2020 1.1286225146915214 2021 0.8016076724283113 2022 0.8060063237675651