Year	% of GDP
1976	16.177936784451983
1977	13.514462019488043
1978	12.978668956365743
1979	12.19201964428957
1980	13.548464734965854
1981	17.082780451277145
1982	18.711032306581313
1983	15.964155125291773
1984	16.47173684146224
1985	14.54729316682667
1986	14.166723842486173
1987	15.105497524684273
1988	15.245635136097455
1989	16.2610617276761
1990	18.904012420438974
1991	21.388627444742074
1992	23.185247108771883
1993	22.33959412522499
1994	15.32821178901134
1995	20.78238290114983
1996	23.484382830926805
1997	26.748629894784166
1998	29.340708895969037
1999	28.052388709421137
2000	28.822473280165944
2001	30.7406642957557
2002	30.60568907670832
2003	31.120275415141098
2004	30.56792238625738
2005	30.217005190167995
2006	21.480074687249033
2007	22.86107168772926
2008	18.115106116515513
2009	17.49137885677297
2010	21.52960871279014
2011	18.90966945444457
2012	19.776767125626197
2013	20.314397903791136
2014	10.811984569512251
2015	9.738744322242514
2016	7.7607632967719775
2017	10.055654043731167
2018	10.308665577008858
2019	9.68128973232143
2020	7.507227874938133
2021	8.426509365666632