Annual % of GNI
1974 21.54062115985631
1975 17.798363365775028
1976 15.332432374827272
1977 15.65443834750276
1978 10.08337358871938
1979 9.40610182610481
1980 3.5636386656825345
1981 7.6563487939865755
1982 8.21816841362514
1983 5.367470553797789
1984 5.145810809651234
1985 5.2549071196351225
1986 2.7140690351149863
1987 6.130611739465485
1988 2.7395331661865003
1989 2.7968566143164133
1990 2.6420229298136406
1991 3.1002096811302766
1992 3.813294857816956
1993 1.5319945385679075
1994 5.984869507729559
1995 8.704333981999289
1996 8.070049108265852
1997 10.891856468495575
1998 11.234763655367763
1999 11.704964889539628
2000 11.450331943536368
2001 14.848229684322337
2002 13.22504484935723
2003 14.686668422089205
2004 13.687289193495754
2005 15.444153863565209
2006 13.473508417539518
2007 15.234812031644601
2008 14.950391954366628
2009 15.143479008481483
2010 16.4356441843856
2011 14.613855126401909
2012 16.120570174144234
2013 16.571288367792327
2014 19.329672449605845
2015 20.68036069253225
2016 21.723662113649144
2017 23.191748035674532
2018 23.67575619191955
2019 24.66619574231989
2020 25.92067080381925
2021 26.683066261372034