Year	% of GDP
1972	15.46216703809827
1973	15.084694363817528
1974	16.043807559648688
1975	17.617396785376616
1976	18.528351451806724
1977	18.85275015222245
1978	19.03021659684464
1979	19.267143933685006
1980	17.665896003561326
1981	18.741359693659085
1982	20.74381405720657
1983	22.44800850897081
1984	22.614550304695424
1985	24.028428431215588
1986	25.240725936355286
1987	25.42864411091325
1988	25.690390375145945
1989	24.99479525044549
1990	25.403907066878855
1991	24.935179728933413
1992	27.922485392046685
1993	29.153558307062976
1994	25.810291997157226
1995	26.09179378556673
1996	27.018444387893165
1997	25.81045759874384
1998	25.677110972104185
1999	25.303351279667822
2000	24.435809152225836
2001	24.341292051798362
2002	23.680378315185234
2003	24.770467159984864
2004	25.602049777311276
2005	25.60172270171921
2006	25.841785281182744
2007	26.080541854020662
2008	27.177118346408374
2009	29.10190337067592
2010	29.577512826076852
2011	31.061973446417134
2012	30.365179734174298
2013	31.259190573784956
2014	31.90535015569584
2015	33.67977874549067
2016	32.18966080021106
2017	33.251812476877326
2018	33.995497825497154
2019	34.6532754617872
2020	37.79999108166247
2021	34.59422114329181
2022	33.6160735804237