Year	% of GDP
1975	23.116729961007206
1976	19.233304101506743
1977	19.6431095564512
1978	19.70582496872055
1979	19.5824068909669
1980	21.18637340641193
1981	21.818492606154102
1982	22.701727221596823
1983	24.18140178712048
1984	24.907281345397465
1985	25.647684418127163
1986	26.073459132264436
1987	25.48084556882103
1988	26.494312696290944
1989	27.777480896535778
1990	47.20465261008906
1991	46.031371965942405
1992	48.08301486115087
1993	51.53196664354617
1994	53.35851786471849
1995	50.403697125894034
1996	49.92941086904037
1997	48.87410238333694
1998	50.48230031989468
1999	49.82943384694115
2000	53.56583978465942
2001	55.26331592873931
2002	54.736359112901745
2003	57.60165550106413
2004	58.11229804099525
2005	61.99114248102017
2006	62.84122244153964
2007	68.142755525194
2008	65.55297652293173
2009	35.78272337977905
2010	36.1417917883173
2011	35.58653092004134
2012	35.54587211775184
2013	36.23655555165073
2014	39.48052025307847
2015	37.93262351251686
2016	36.265765904119405
2017	36.909353390399836
2018	37.50330967407525
2019	37.90088962926987
2020	37.042720901021916
2021	38.52660682142667
2022	39.8093098606761