Year	% of GDP
1960	13.993699561396534
1961	13.924584884199392
1962	14.029076786768591
1963	13.866722373555938
1964	13.29735558777302
1965	12.783454902705957
1966	12.402530438953466
1967	13.068986312305048
1968	13.349854891036447
1969	12.515937214673537
1970	12.288131638472652
1971	12.176549195871447
1972	13.043214769433238
1973	16.7408095853096
1974	22.814345114879536
1975	20.300595934986227
1976	21.401628711008907
1977	21.560089331398945
1978	27.072335250722265
1979	31.28302805827701
1980	35.486157331967306
1981	35.80170952245897
1982	34.028603827112505
1983	33.4337226110993
1984	33.254133178383945
1985	30.627137164355993
1986	30.986290148763164
1987	36.79163650846482
1988	41.026318158243946
1989	44.13488671018923
1990	46.71237152640626
1991	49.98777265497178
1992	51.748208758186955
1993	54.25266322970291
1994	54.51034380712853
1995	54.368076514282365
1996	49.66397994711303
1997	51.5303835645704
1998	51.21898023133629
1999	51.39306935951602
2000	58.51191895997493
2001	54.62061017725299
2002	56.53949734792509
2003	62.468012867656356
2004	69.71420834160924
2005	72.6446575814779
2006	72.53229215069446
2007	68.98383423144193
2008	64.23901609556242
2009	49.94977762995837
2010	54.792215839272245
2011	54.7098937277951
2012	51.82023506637769
2013	49.78441911547665
2014	47.45791281105743
2015	41.97322818769549
2016	39.06488250471694
2017	40.38728609905375
2018	40.51009189263503
2019	38.758701507931036
2020	38.01023505777725
2021	40.8288580523174
2022	43.25505438959539
2023	40.69842551196736