Year	% of GDP
1977	14.637889803585608
1978	14.380345794357549
1979	13.79000822325201
1980	16.747270119191512
1981	16.833111105932808
1982	17.83889488853372
1983	16.85561571709045
1984	16.00782442326389
1985	16.791934185985824
1986	11.902092980284152
1987	11.217522258847975
1988	11.117062592631811
1989	13.694742477104944
1990	11.590312569592236
1991	12.907610135561292
1992	10.891309274925531
1993	6.995724486227312
1994	9.255707501071129
1995	7.3911135947655975
1996	13.869149923357272
1997	12.943821368412964
1998	11.950103489880473
1999	10.070062999687075
2000	16.316121973675756
2001	19.069503619369417
2002	18.779594169653883
2003	11.71732166025052
2004	13.840374970260969
2005	12.475243916701542
2006	11.975004666274254
2007	13.115920566922561
2008	15.105670056208151
2009	11.538715941866448
2010	11.06252539779402
2011	12.551806763646661
2012	12.457688137339868
2013	13.37982714075528
2014	12.890749880299305
2015	11.532806407131222
2016	11.549281682578519
2017	12.150610797498945
2018	12.068173626223889
2019	12.675764756737873
2020	9.38363792705547
2021	8.966605238873148
2022	9.758960203037772