Annual % of GDP
1977 21.25254926977873
1978 20.85099782282751
1979 20.346423474094493
1980 20.81497944952329
1981 20.410398071954766
1982 18.728597750601466
1983 18.49709360853968
1984 19.168855650558967
1985 21.419619404654433
1986 18.255587331754
1987 21.433355178564728
1988 22.458680970343902
1989 25.629602576517936
1990 18.479507862761814
1991 17.80553659171299
1992 17.738523778892983
1993 18.531660537460304
1994 18.242207281013037
1995 16.78476284946636
1996 16.618441854804225
1997 16.542435109385863
1998 16.812951882136137
1999 16.18824884142421
2000 16.278873797443378
2001 15.853829381847472
2002 17.531860963679474
2003 17.905961242244505
2004 18.72541867422037
2005 18.164266125336837
2006 20.15324789731265
2007 20.59403544160911
2008 20.042713493929796
2009 18.188545203948788
2010 18.483717809914975
2011 18.943476629639065
2012 18.23544157463526
2013 17.587887717304618
2014 16.859333770292654
2015 16.273832495060937
2016 16.141863476812635
2017 16.362802698852704
2018 15.940558151678713
2019 15.97569233502382
2020 17.289627273621093
2021 18.765407569379494
2022 17.418952847394827
2023 16.82649033902324