Year	% of GDP
1964	20.769905181092096
1965	23.624691312308947
1966	23.498546811651067
1967	23.89880440619345
1968	24.85918445255818
1969	25.144075401350346
1970	25.912783610600414
1971	27.436550423863814
1972	29.057209459288355
1973	28.832865759533906
1974	26.381865468369067
1975	28.548171825568218
1976	30.85146591970905
1977	30.390008575222016
1978	32.1302525316667
1979	33.90817682508512
1980	34.74420015035991
1981	34.14355013493107
1982	36.16054222768224
1983	37.67352165859405
1984	38.15633453239645
1985	39.602304007390075
1986	44.87478502975083
1987	44.19462369002242
1988	43.12042826834138
1989	55.45689238951629
1990	41.46334149618916
1991	41.97146825445569
1992	46.85968228431675
1993	49.96843237250113
1994	46.85599615947743
1995	46.74575149633152
1996	49.397671034753195
1997	52.79346765809677
1998	54.50803370088112
1999	61.18954526189362
2000	61.01084839591113
2001	65.24293682055868
2002	68.10495913215911
2003	70.74620236551075
2004	69.09046897533213
2005	69.64486902317991
2006	72.84781768144465
2007	74.29082008333312
2008	75.77425687782718
2009	91.00601234025316
2010	90.43192642426912
2011	91.64260527906555
2012	96.26856009467706
2013	101.40450328741251
2014	107.39791559824936
2015	119.33911987382007
2016	123.2427817031617
2017	120.77920845938922
2018	120.57948464309496
2019	122.95685151648435
2020	138.75743934919834
2021	139.1425102634151
2022	148.87330834088712
2023	155.68514408668815