Year	% of GDP
1975	25.45359534074719
1976	22.914354453238133
1977	22.69431299167886
1978	24.12532708186161
1979	24.477574713691208
1980	25.859710992768136
1981	19.794627814877728
1982	18.48931349702738
1983	18.16178609164843
1984	20.01395445080395
1985	18.538387057876733
1986	22.036900902302783
1987	22.651067331075755
1988	23.31920170465224
1989	23.568221671955726
1990	21.640820140106698
1991	20.980742655789314
1992	22.586716471054196
1993	21.758835862797753
1994	23.108852201526144
1995	22.026985669733207
1996	20.588787833203927
1997	20.247629030593085
1998	20.05989901076542
1999	26.740552974607912
2000	26.403833184237097
2001	26.587008899422027
2002	26.414121089803384
2003	25.907760643925442
2004	26.179589903767102
2005	26.43218063646892
2006	26.12869963006574
2007	28.168878022941733
2008	30.254166572764703
2009	28.176169590029836
2010	27.10586034994774
2011	28.352837747769005
2012	28.60393843696063
2013	27.973435105553108
2014	26.514789627512858
2015	25.853704433251302
2016	25.095984632004935
2017	25.2938017067872
2018	25.629230181191666
2019	23.877861746501498
2020	22.27644115922142
2021	24.41741894957422
2022	27.382046014410445
2023	27.39741451207005