Year	% of GDP
1960	100.40352396029463
1961	100.95665245431897
1962	99.4957095726268
1963	99.7165232516848
1964	101.32560647327466
1965	101.31082390573971
1966	100.62866921044666
1967	101.9244060035136
1968	102.8760418188236
1969	103.5994117032477
1970	103.56879724528613
1971	106.10970249555014
1972	103.14216539067849
1973	98.78155937571499
1974	96.10026900760693
1975	103.263262763279
1976	101.94263238363274
1977	101.83645658072305
1978	103.83186340412058
1979	100.26342477903776
1980	100.72895661335686
1981	100.67958201699132
1982	103.09996335396556
1983	99.75678741708379
1984	98.30545973570916
1985	96.35456745087794
1986	101.85179753081033
1987	106.99854872177535
1988	104.65059947277365
1989	104.5468832490527
1990	99.06616825016692
1991	97.84747280645553
1992	96.53906336958232
1993	103.09953675919931
1994	103.21811135491376
1995	103.3374639874716
1996	99.66913330726294
1997	101.94733389673686
1998	107.6112062161536
1999	96.44616751844241
2000	90.30218157476448
2001	100.91422794644626
2002	103.3678101774745
2003	98.67399566636207
2004	97.8751694099724
2005	96.70385814649272
2006	94.4389874697209
2007	93.88571924357143
2008	94.03769462192308
2009	98.72809005770831
2010	100.80599308635641
2011	97.80894360778547
2012	97.34010973584924
2013	98.6827704251287
2014	98.71630420723405
2015	102.3190682545846
2016	99.45590846404393
2017	100.64654853472783
2018	100.92160733744339
2019	99.98558308426621
2020	97.42218762559266
2021	99.14177583357974
2022	100.04846890853925
2023	99.71701755026339