Year	% of GDP
1960	10.940536131919432
1961	11.657839423724102
1962	12.199881718334277
1963	12.024096927529278
1964	12.40823397229516
1965	11.503700818075574
1966	11.502609992542878
1967	12.486144101346001
1968	14.198752707057869
1969	13.45078176613081
1970	11.947233283196388
1971	13.780794151251962
1972	15.163598347916436
1973	15.177243887469904
1974	15.238517493205297
1975	14.915297070055978
1976	16.907249695139313
1977	17.1751374817935
1978	17.823467250410317
1979	18.295618927151665
1980	22.569450454348765
1981	20.711190218232474
1982	26.153942038018073
1983	29.44246042321838
1984	25.966294193075655
1985	27.781212930986804
1986	28.96348884381339
1987	16.67506267076946
1988	17.135986307581746
1989	18.350369642419082
1990	18.110188441444922
1991	13.629571589187501
1992	12.318789367209378
1993	11.69019782214572
1994	10.3728806209699
1995	10.094738875025282
1996	9.9259121031714
1997	15.174927410666886
1998	13.402051679136939
1999	16.076696490866137
2000	16.357453317593166
2001	13.375017313151712
2002	14.204957525226305
2003	13.985997090466542
2004	13.987746537601902
2005	15.074280983428261
2006	15.633165880873603
2007	15.905359874486772
2008	17.478421738225695
2009	20.98836719248668
2010	20.808414915736947
2011	21.69260573704949
2012	20.501241983833694
2013	17.52056264101749
2014	20.39778658843393
2015	0.023964197367016472
2016	0.025090788598154983
2017	0.02374686472881533
2018	0.023038522027713025
2019	0.023231193036625044
2020	0.029523014189023946
2021	0.03244183873862407
2022	0.035463921445018164
2023	0.033382391188953774