Year	% of GDP
1960	22.412367253930093
1961	16.541561135663933
1962	15.486646205873416
1963	16.614790910234937
1964	17.974714507742895
1965	18.73366817415244
1966	18.773444203117148
1967	17.693279877932962
1968	17.258000192112778
1969	18.408038507091064
1970	20.06941392733429
1971	20.728238124025122
1972	21.358270821784078
1973	21.246176717169604
1974	21.013727857146286
1975	24.153717512268152
1976	25.23508204817843
1977	25.45516780324816
1978	25.160725232955244
1979	23.33151826443272
1980	23.3701978984436
1981	23.049015824200435
1982	23.144827866913907
1983	24.140385987286407
1984	23.970822353838177
1985	23.661545681266663
1986	24.42101256798003
1987	23.426330991689504
1988	23.886625340843494
1989	23.713395860548747
1990	21.917322880692847
1991	22.055683756099803
1992	23.21019439661775
1993	24.363860533806676
1994	24.64108798369538
1995	23.79279819136288
1996	23.66656185408839
1997	23.55591319837515
1998	23.222860623360525
1999	23.23252766131554
2000	23.338465237461538
2001	24.004272100531374
2002	24.58313718481568
2003	25.68044445050004
2004	26.858198803872195
2005	27.178218938546255
2006	27.520987832202675
2007	28.233799012446305
2008	29.225637463289033
2009	31.115245885916387
2010	31.0418693367628
2011	31.571388007280987
2012	32.124236158096984
2013	32.399506807148576
2014	32.386835095529456
2015	32.31629988402935
2016	31.878422944258944
2017	31.95853021756396
2018	33.18129833997596
2019	33.03695112967088
2020	33.15805975637623
2021	33.60090424666432
2022	33.202881184537084