Year % of GNI 1976 25.5534433988502 1977 20.6527731702952 1978 19.291471583937 1979 19.4584535137262 1980 10.6233147851872 1981 12.8749159219766 1982 14.9906319399282 1983 16.3300211762119 1984 17.9117447868321 1985 21.698709725549 1986 29.4554958593602 1987 29.7057658414673 1988 28.9853957066314 1989 26.6195636968197 1990 26.0453779828984 1991 27.5273904914354 1992 28.9622056930023 1993 27.6881663610156 1994 25.4240197635091 1995 25.3129162962876 1996 25.8746221331861 1997 27.243440063414 1998 26.7576541270346 1999 25.7212787424497 2000 26.9653747058752 2001 28.6003954168865 2002 27.5333829009248 2003 26.0970086966527 2004 23.1551931857936 2005 18.3087529622526 2006 20.4968688428732 2007 24.5070296948356 2008 18.6367696077639 2009 14.9103809924952 2010 15.8289004481462 2011 14.4292310432958 2012 13.9026213430145 2013 12.5822190320952 2014 10.4852715946548 2015 11.1270523444635 2016 10.8315587986894 2017 12.4908090930224 2018 11.4346865981192 2019 11.112788117054 2020 5.21375302759107 2021 8.36448810874769