Year	% of GDP
1975	7.372118350017614
1976	6.902402882428127
1977	6.908574912312488
1978	7.0953078804457075
1979	6.88683793805833
1980	6.328253170994502
1981	7.383910073674027
1982	7.938469326316261
1983	8.868714773740244
1984	9.794955141010774
1985	10.075947608090095
1986	10.885211887293107
1987	11.648154967214309
1988	12.659710708054265
1989	12.548242310550231
1990	9.667573622503992
1991	11.081897884444407
1992	11.22320247498061
1993	11.15336266564511
1994	11.414166722951096
1995	12.280747863026088
1996	12.655633802891966
1997	12.790281355459326
1998	13.203291254985785
1999	12.801782689338367
2000	12.953220539617757
2001	11.301027156123302
2002	11.588846135143145
2003	11.475979633680577
2004	10.769421423116924
2005	9.895553968906896
2006	9.386643967047963
2007	9.190259070327631
2008	8.742607345195475
2009	9.86717982736607
2010	9.778459423169407
2011	9.348185342718656
2012	9.2949888014546
2013	9.35755589826128
2014	9.881042208811222
2015	10.682073035090891
2016	10.88974197168871
2017	10.62222064488526
2018	10.316613986394692
2019	10.260690847886275
2020	11.031556420853352
2021	11.314564917234941
2022	11.751107009335632
2023	11.354089986605157