Year	% of GDP
1977	9.001597456476317
1978	9.708951353775529
1979	9.274740443474785
1980	9.499981604497231
1981	6.8267151707310285
1982	6.3640809858714595
1983	6.511684942870445
1984	6.782005346660734
1985	7.2693882205519555
1986	7.343126575741635
1987	7.340429540605361
1988	7.401918092760958
1989	8.115834878299625
1990	8.077228737224768
1991	7.464950291267204
1992	8.517959164855888
1993	9.394965934464043
1994	9.057164708007303
1995	7.3935586944721985
1996	7.094599139805309
1997	6.866623865330802
1998	7.043499788120559
1999	11.08827662348592
2000	10.486246315412812
2001	11.30423210218758
2002	11.005227092472689
2003	10.615879860970072
2004	10.32283842669105
2005	9.98912601982352
2006	10.485002135552103
2007	11.067099028368114
2008	11.852539988971397
2009	11.1327593669709
2010	10.63086490191319
2011	10.994696840570496
2012	10.611863320594855
2013	10.111784059824917
2014	10.112199398346808
2015	10.3217232984199
2016	10.11852771771101
2017	10.55830945955925
2018	10.92653450284647
2019	11.171936919664647
2020	8.661696640600677
2021	8.515466445652278
2022	9.445006921248565