Year	% of GDP
1960	7.84313262772837
1961	8.51617615458605
1962	8.98048080721811
1963	9.10745401042819
1964	8.53679190854436
1965	9.27009162146605
1966	9.51540771795407
1967	9.11672870404146
1968	9.82064342827666
1969	10.4001286354887
1970	11.2365497014764
1971	12.4934379258298
1972	12.9223576801012
1973	13.0938638341127
1974	12.9137997938057
1975	14.9337333299206
1976	17.8877016985182
1977	18.0417851880559
1978	19.6954206973289
1979	20.9567362383734
1980	20.5434589538871
1981	21.2254624473987
1982	22.6878989175431
1983	22.8926687647968
1984	24.2825746445338
1985	24.5636651595543
1986	25.8010010963318
1987	25.3823595128242
1988	25.2751174407626
1989	26.5898140097507
1990	24.9164565697186
1991	23.8217444526828
1992	24.6982402507395
1993	23.8320553867162
1994	23.6473414046455
1995	22.5107747023582
1996	23.4024420368578
1997	23.5553253462263
1998	23.6777468578745
1999	25.4228622073471
2000	28.3395511575183
2001	28.6194154254102
2002	32.3064890735537
2003	31.6262656186491
2004	36.1918038545968
2005	40.0679804780573
2006	43.6277524334268
2007	45.6277647457138
2008	49.559366687116
2009	48.1244479112046
2010	50.5553749785224
2011	51.2892331325282
2012	51.8885076473311
2013	52.3857095169752
2014	51.8821873589436
2015	51.8675240772184
2016	49.1012254191341
2017	48.794021399068
2018	50.3381627463174
2019	50.7424617406323
2020	54.5052902460469
2021	50.1421581396974