Year	% of GDP
1960	55.16528423893573
1961	56.408916464809536
1962	58.2556172961359
1963	60.28008949990063
1964	60.699362153337674
1965	61.161213883059
1966	59.53775561326288
1967	61.74096888593956
1968	61.881145012794505
1969	58.893269717600546
1970	64.52073958823573
1971	68.28280816509232
1972	72.68774178328795
1973	73.06330773369687
1974	69.85125445287139
1975	71.33822059017758
1976	71.6989458931269
1977	73.42945050383841
1978	76.56923740001874
1981	76.35128134118571
1982	79.40782171258402
1983	81.80461682310975
1984	83.48131721955377
1985	84.79123949984013
1986	93.1935888471101
1987	98.29686644304475
1988	100.78320570209378
1989	100.6369403927821
1993	100.48330691545588
1994	101.35214746815387
1995	103.71626309890615
1996	100.56924176220534
1997	100.71295205406257
1998	103.18019639666223
1999	108.71665323908336
2000	109.28490035391782
2001	102.73349655977698
2002	102.63412340692099
2003	103.00388876675538
2004	102.33482711213696
2005	101.89144099345411
2006	102.45720605669035
2007	103.2526277514494
2008	108.19854788118673
2009	117.84228277694386
2010	114.61486803543706
2011	115.81422970227797
2012	116.33052216242395
2013	113.87886902138902
2014	113.98261089753106
2015	114.62525814709396
2016	118.58744332831252
2017	116.94469316905028
2018	117.3526956016604
2019	120.09964243477746
2020	138.5955195170333