Annual % of GNI
1975 30.491915842481102
1976 28.890339895726935
1977 27.74668793510484
1978 28.130251790234812
1979 29.6547873590088
1980 30.40923961758061
1981 29.44755278032785
1982 28.178361647209286
1983 27.875781966139062
1984 28.50841565867723
1985 27.557477907373684
1986 27.21281906217603
1987 26.768933625563967
1988 29.01661705110557
1989 28.765193733504645
1990 27.147990624413588
1991 19.942664252881766
1992 17.688250205592638
1993 18.539057770135525
1994 21.497109853609008
1995 24.494692612020227
1996 23.828320045074335
1997 26.827063586803078
1998 28.208893038347565
1999 29.464645564045682
2000 31.461845718876067
2001 31.974684006701356
2002 30.807683726320654
2003 28.182156146880775
2004 29.388148626759925
2005 28.48445756344565
2006 28.500819411312133
2007 29.92609111753839
2008 28.22219663373264
2009 23.56756510713595
2010 23.580355101113156
2011 22.811727407612153
2012 21.380162933045746
2013 20.28496989332193
2014 20.48566548660709
2015 20.687861359815784
2016 21.18685865338861
2017 23.19118980713507
2018 23.32868825161998
2019 23.658919288703025
2020 24.651713863450635
2021 24.13813215723324
2022 23.806738160546708
2023 21.367694385305633