Year	% of GDP
1976	36.78934339911651
1977	38.62530413625304
1978	42.60255548083389
1979	31.84017868221864
1980	35.91093430179164
1981	33.5613070121669
1982	30.793597830113185
1983	22.042951970995524
1984	21.422418793424573
1985	22.29283717757434
1986	22.471719060610944
1987	18.529838108044704
1988	23.438450023312804
1989	24.278452657456352
1990	22.758239299033406
1991	21.101570067496237
1992	21.050519004670093
1993	26.33348510552888
1994	26.292797344411483
1995	30.00834939631251
1996	39.79035770551535
1997	27.775035442118778
1998	33.87292453058138
1999	41.24859903321891
2000	24.91839394653346
2001	40.39510028265101
2002	27.58813455891498
2003	10.962983180692309
2004	17.416064265597345
2005	23.86914095233371
2006	30.322223858020514
2007	29.22442943459382
2008	27.64303399550096
2009	28.02722542294434
2010	37.03142381658668
2011	34.81624935555502
2012	37.7299203495349
2013	38.56690570794129
2014	29.054898874945074
2015	26.879515371651785
2016	25.13473942498925
2017	24.535176692882438
2018	21.986986616498292
2019	22.08559452872178
2020	21.321319896002215
2021	16.467716126220637
2022	15.271504718618306
2023	16.071165084298936