Year	% of GDP
1980	23.008849557522122
1981	23.577235772357724
1982	21.53846153846154
1983	21.96969696969697
1984	24.285714285714285
1985	24.285714285714285
1986	24.817518248175183
1987	22.535211267605636
1988	22.602739726027394
1989	21.52777777777778
1990	30
1991	26.5625
1992	52.34584450402144
1996	33.15238464521133
1997	27.506641199587257
1998	26.244001513311165
1999	24.72171750136716
2000	20.602008902715493
2001	20.961941863949654
2002	19.24087982832618
2003	19.301502784881073
2004	16.395061225736185
2005	14.76994036606459
2006	11.198775915706422
2007	9.195706669491226
2008	8.131628475116514
2009	8.101301011898144
2010	8.865986726263037
2011	9.738871604276026
2012	8.565659389898556
2013	9.21478687624408
2014	9.204236807263099
2015	8.54206032187102
2016	8.00327332913851
2017	6.9186093372036765
2018	7.561590338079076
2019	7.335486264730724
2020	8.31654843439314
2021	7.227317370397207
2022	6.632355201756794
2023	6.006701393215861