Year	% of GDP
1960	10.710141301081354
1961	11.999608578952776
1962	11.309809429446615
1963	11.562611578597139
1964	10.85976138318843
1965	12.06862325843931
1966	11.974369479242851
1967	11.75534829916059
1968	12.903774251162988
1969	13.749831785640765
1970	12.97767471215877
1971	12.938374423307671
1972	14.72374894555348
1973	14.954295974441605
1974	10.979085879598125
1975	14.207866212782452
1976	14.941723875191233
1977	16.24435275061071
1978	18.87343666444023
1979	18.226464890723232
1980	16.280126840908714
1981	19.1047372703196
1982	23.175936266683046
1983	27.411296388022205
1984	29.366551580281875
1985	31.564167766395787
1986	37.52285543280005
1987	37.34478894348105
1988	38.515261572617575
1989	35.1650314203547
1990	25.72349465439575
1991	23.111975203401126
1992	20.974536926165825
1993	22.042611782956257
1994	23.686303867497564
1995	26.00499238871879
1996	25.90763444622129
1997	28.8403452691667
1998	34.47346116421666
1999	34.66702020895071
2000	32.37503825132779
2001	34.167024037241916
2002	34.90486860994675
2003	33.782466201350765
2004	33.0529863895458
2005	34.111500010746774
2006	34.13261394246872
2007	37.388204980077084
2008	38.81416383300337
2009	45.54720980647782
2010	40.86548464681699
2011	37.44565266645285
2012	36.77001587950855
2013	38.46261745649622
2014	42.03437817727961
2015	51.35355485324525
2016	54.7081240743129
2017	52.523711912919936
2020	52.361438581712285
2021	48.17711568559737