Year	% of GDP
1960	50.7850017883438
1961	50.7443500900268
1962	50.4231769919165
1963	50.6558003420787
1964	47.5953635097784
1965	46.8840853879238
1966	48.5101963323026
1967	48.8368296840765
1968	51.1932092354654
1969	50.1890442225675
1970	46.0629919907193
1971	44.7817323043262
1972	44.6705146322012
1973	43.3097722219582
1974	42.7008072039943
1975	48.4370497199917
1976	47.9716435686657
1977	44.7104369991166
1978	41.8271081069169
1979	42.2464484896856
1980	44.1948869811324
1981	46.033578351604
1982	45.682422551766
1983	50.6872984725216
1984	57.2766247737308
1985	60.117003095689
1986	65.063367966217
1987	59.2569099186101
1988	60.3189081411515
1989	63.1596192546498
1990	60.7875228646473
1991	63.5260840314046
1992	56.6889447858993
1993	51.9605278523645
1994	53.1786672053927
1995	52.6296075530757
1996	54.4868744204096
1997	54.9156686401698
1998	60.2519755945028
1999	56.1853187460266
2000	141.15244267262
2001	152.923215938115
2002	156.100349355046
2003	166.519779721923
2004	173.426999737885
2005	184.918428284186
2006	194.82568667809
2007	214.944251141707
2008	239.120341189468
2009	237.203076292458
2010	234.093161953151
2011	237.777210337027
2012	230.46674434193
2013	214.554452742686
2014	218.122620762583
2015	213.603002512418
2016	211.533706450903
2017	197.278172939309
2018	200.144063375035