Year	% of GDP
1960	5.708662793887139
1961	6.072869718768293
1962	7.6435669796894326
1963	8.602362444383177
1964	8.708793112511222
1965	8.732444069559989
1966	8.854724177828203
1967	9.416608415239653
1968	9.848921425479011
1969	9.6472782737782
1970	7.998403749094626
1971	9.586001941606131
1972	9.897964199597881
1973	10.27421887624628
1974	9.312445459231252
1975	11.809139775090197
1976	12.011572612293905
1977	14.41972840145641
1978	16.689747036761183
1979	16.307317434237795
1980	17.00021187250614
1981	9.415408555134647
1982	10.109632330719577
1983	11.021205094638578
1984	11.051358628269131
1985	10.985697682983991
1986	14.324244760591279
1987	14.905370536161904
1988	13.822254885738475
1989	13.37156364420386
1990	13.017126600397752
1991	11.917794770019627
1992	11.80079539126023
1993	10.064485806393463
1994	8.413071566829434
1995	7.318085103530371
1996	6.773297079549736
1997	7.410058011961089
1998	7.926443384263829
1999	8.853295643892698
2000	8.621057289508412
2001	9.270541843662867
2002	8.368786143466146
2003	8.996091782986538
2004	8.735806971737798
2005	8.771509020293019
2006	8.59118491702189
2007	12.44775610867841
2008	15.357315020631509
2009	16.531991050623976
2010	13.133302880695314
2011	11.979164575297839
2012	11.74491363573668
2013	12.70008280615532
2014	14.098605886914832
2015	14.57398558625762
2016	16.0091050447355
2017	15.085519537648183
2018	13.43030716311066
2019	13.75613237968804
2020	14.567159812699627
2021	15.577270473392549
2022	15.519349721071595