Year % of GNI 1977 8.444594124469877 1978 6.830151670712993 1979 5.237362723236306 1980 4.116163565676566 1981 4.803306015636328 1982 4.012067467947732 1983 5.072632338066452 1984 -0.5616643040496639 1985 4.690427884512583 1986 11.363028807253746 1987 9.460692634548145 1988 9.4332011134755 1989 7.042403775980028 1990 2.2422594307596695 1991 -1.0122439488106036 1992 4.335700151135907 1993 3.396891051557333 1994 6.216005142138792 1995 3.3583657282525796 1996 0.7568545331442217 1997 7.323259997293719 1998 8.781104300823959 1999 6.910512960367521 2000 18.991383433363843 2001 29.74107584108567 2002 32.70746964238786 2003 33.25277306420701 2004 38.56602422258923 2005 36.673071131693376 2006 33.915265241769674 2007 39.381988327650156 2008 35.38457293007519 2009 24.48274978910924 2010 30.23761565544913 2011 30.886389147788307 2012 10.522566246588541 2013 10.62782062213253 2014 9.17254259259842 2015 8.292658212905945 2016 9.710090364744984 2017 9.810603104540707 2018 -1.242507298713015 2019 5.382675106321603 2020 4.918287753219413 2021 6.994346603029194 2022 5.097023324830285