Year	% of GDP
1972	11.819937300154013
1973	11.49521249130054
1974	11.837620361328282
1975	11.185800496645507
1976	10.748836881582909
1977	11.618646322987608
1978	11.542359050161188
1979	12.00380766351277
1980	12.138352651640163
1981	12.550509956062303
1982	11.978626641812626
1983	10.348268234949662
1984	10.159715653778607
1985	10.384240163411715
1986	10.16304588732149
1987	10.948845725678472
1988	10.595943272888936
1989	10.782440380177185
1990	10.77664324071425
1991	10.668454963752554
1992	10.353393761115543
1993	10.590727107081971
1994	10.83269756521797
1995	11.17787581398304
1996	11.587749220231986
1997	12.062094035966467
1998	12.529491780400608
1999	12.468298322678244
2000	13.131898201269404
2001	12.056102888298554
2002	10.167658490639193
2003	9.718392117882505
2004	9.862526610349336
2005	10.905230746510453
2006	11.484456208113633
2007	11.464468625351515
2008	10.456674217542218
2009	8.279252297589975
2010	8.83383348440614
2011	9.73230804091647
2012	9.926178171421268
2013	10.559543325643654
2014	10.97732481335691
2015	11.285877152943515
2016	10.994708919403468
2017	11.598496103450376
2018	10.196612219542475
2019	10.13746082072796
2020	10.492276297298858
2021	11.464289081271296
2022	12.233219817603224