Year	% of GDP
1970	72.82191313251984
1971	70.60889929742441
1972	70.89448703906587
1973	60.1273148148152
1974	43.52377311888043
1975	57.44911053518887
1976	56.10909784474559
1977	62.28192960294992
1978	57.189682200370775
1979	41.3541442796762
1980	38.38193612204936
1981	66.99979730146619
1982	82.61146546910334
1983	97.64440218683224
1984	87.99661876585014
1985	83.47100281112247
1986	93.1647556647563
1987	84.53522727272775
1988	84.19736313953175
1989	107.67839905134828
1990	56.21127730145836
1991	110.85471454550596
1992	62.57631936505068
1993	36.06619557035992
1994	36.57258422922685
1995	43.91688760791249
1996	39.273125856589694
1997	39.25217303962647
1998	49.47170643671795
1999	29.532756728390936
2000	25.379187403794557
2001	35.369264476282744
2002	43.57708270229394
2003	58.29858461166724
2004	62.26635982073321
2005	57.492943096626846
2006	52.84221647558465
2007	57.27336722303262
2008	47.90957687752388
2009	73.30955809928244
2010	63.36182581503296
2011	54.76316158800538
2012	56.42951043382527
2013	56.08899226829232
2014	60.068936886440405
2015	74.34515333562763
2016	75.22227240460279
2017	67.76038239689933
2018	59.4175673961806
2019	62.28261464892626
2020	74.80356683199997
2021	58.06069450401024