Year	% of GDP
1972	9.140833988985051
1973	12.36293892003541
1974	17.115652801154123
1975	19.323434228060158
1976	20.49242658423493
1977	17.855095332018408
1978	14.213518764699867
1979	12.640826099970068
1980	11.289551876781275
1981	15.116416249304395
1982	12.88072341036314
1983	12.02550841855582
1984	12.666273548307005
1985	8.558429005870012
1986	8.297221903779281
1987	7.922109410516745
1988	6.640473137846891
1989	7.0043694828238285
1990	9.384531397335639
1991	11.85936078788069
1992	14.687296379702557
1993	14.228140914387016
1994	13.990257639095377
1995	11.893443747998353
1996	10.090040893831175
1997	9.6855105359072
1998	12.155947441217151
1999	13.873169462253662
2000	14.711133084328617
2001	16.5122232652132
2002	19.19782078103208
2003	19.97736212429872
2004	21.843987858913145
2005	19.675058783806897
2006	20.837717573283207
2007	23.365216013881568
2008	26.20210788450885
2009	29.246117053748165
2010	27.42248765614451
2011	27.784352768343055
2012	32.85101781097232
2013	33.15056905355361
2014	32.54792822795696
2015	35.95600321379096
2016	32.65455996913176
2017	33.91253856700235
2018	34.677853125152005
2019	35.85950691669184
2020	39.634033453087206
2021	34.437382131006906
2022	29.810846444006945
2023	30.002808350939915