Annual % of GNI
1976 19.07273894646271
1977 24.968083811442717
1978 17.29698473183166
1979 18.763727470312208
1980 13.626882825626414
1981 6.367019874923896
1982 10.490192073170732
1983 11.061456965845128
1984 10.299887638156314
1985 9.546101050133716
1986 16.450839554132575
1987 16.268500852708673
1988 15.841438512708155
1989 16.527072947904106
1990 11.95426888886321
1991 12.530380544257794
1992 17.02537286073333
1993 18.416005642301695
1994 20.88430848473163
1995 19.390467614312296
1996 14.349707188462476
1997 15.533766946601846
1998 19.309487340140652
1999 17.04513784962994
2000 16.0599043636422
2001 18.79724705516435
2002 16.0000749708874
2003 15.297139750849405
2004 15.984108312251076
2005 17.31131710269783
2006 17.95600541562757
2007 14.0248859895503
2008 11.912314238565642
2009 12.681827915039916
2010 14.197689128768696
2011 12.695617503111889
2012 12.417783029159969
2013 10.59153605589912
2014 12.140362390075625
2015 12.928513411374501
2016 14.433799807381506
2017 15.915679134132063
2018 16.524965598852987
2019 19.16149590471264
2020 19.363106926671904
2021 20.51641422306199
2022 17.733970119687633
2023 19.27770150451837