Year	% of GDP
1969	45.37403801996037
1970	48.739350267471345
1971	34.79959015199825
1972	37.10446644923017
1973	44.12387434570954
1974	34.37727877084258
1975	35.138072664966025
1976	33.69892429666483
1977	31.81658014099702
1978	31.40578710182347
1979	30.11340529178607
1980	27.582127961519827
1981	29.89078580881574
1982	31.609238853953332
1983	32.49026983500017
1984	30.372496368378098
1985	30.423078251623966
1986	31.161815473122047
1987	31.966554562811957
1988	34.104100605066556
1989	34.10731592448253
1990	35.15814475021557
1991	36.46520955084496
1992	37.61628286071157
1993	39.045808572622185
1994	39.38618178645227
1995	41.835318981588806
1996	44.12982038044616
1997	41.27543112544949
1998	42.47240148856309
1999	43.112174991508965
2000	44.63783241343736
2001	48.29975601461795
2002	47.93318920036212
2003	47.809092104639966
2004	49.29478548920487
2005	51.56374426278843
2006	51.23286822897331
2007	53.31308205807521
2008	55.30391742697945
2009	58.252414579906954
2010	53.14662927575915
2011	53.23828853167258
2012	56.941726390092036
2013	57.09970608219543
2014	55.489228458048515
2015	54.06584071121341
2016	53.507090897614425
2017	50.66707861938649
2018	49.02069246821554
2019	47.50109050550703
2020	57.01653228376855
2021	49.078814901658056
2022	39.48716179533983
2023	36.81645217405248