Year	% of GDP
1965	23.09746328437917
1966	24.355971896955502
1967	28.440366972477065
1968	26.07781282860147
1969	28.91809908998989
1970	24.115755627009648
1971	18.664062719935064
1972	20.66256830601093
1973	22.168194002867654
1974	13.842119429376329
1975	26.01089687379131
1976	32.55462666354143
1977	43.442844434062046
1978	39.86586309593603
1979	28.816634369912407
1980	34.297894734584816
1981	38.47805438237412
1982	52.36385887236157
1983	49.35217328761074
1984	44.6411206452902
1985	42.744582120143754
1986	48.012515314080574
1987	37.123011708893586
1988	42.939793233211965
1989	41.3697520231348
1990	58.07205117576123
1991	125.71091525691467
1992	54.217798777691605
1993	44.28584998448612
1994	42.33062502699018
1995	41.96502298524754
1996	39.18719708137574
1997	39.59073283586953
1998	51.097198507557074
1999	39.43422358419578
2000	30.14615005661046
2001	35.54205607476636
2002	36.60914581535807
2003	34.463664909723
2004	32.38052829585481
2005	28.266619195361375
2006	24.167359473353805
2007	28.31746499450593
2008	25.923906733501934
2009	29.37743063070153
2010	30.35451039119133
2011	25.898817755882213
2012	26.279593019469612
2013	26.745134153964077
2014	31.530766996150472
2015	44.93333349717794
2016	48.52702980632556
2017	46.64373091511973
2018	45.619963447481844
2019	44.07892345687744