Year	% of GDP
1977	8.593330240239842
1978	8.922942503894848
1979	8.99027747098093
1980	9.641324455112166
1981	6.559309748430279
1982	6.244303389316655
1983	6.732617163820534
1984	6.905550068676787
1985	7.320581233871465
1986	7.360157336143754
1987	7.814632804912197
1988	7.949854306037424
1989	8.933372693336105
1990	8.968390481426036
1991	8.733968906041277
1992	10.561899394235997
1993	11.251471326399672
1994	11.08815257835061
1995	8.860698594601732
1996	7.964443677652282
1997	7.634125477503018
1998	7.355148959346787
1999	11.471644978632972
2000	10.08623402423018
2001	10.458145964029486
2002	10.33899715654115
2003	10.283989440581374
2004	10.609146312513113
2005	10.639787676305248
2006	10.817137863000127
2007	11.101358187208543
2008	11.068283519457221
2009	10.23697329919511
2010	10.405569099884302
2011	10.314995433628749
2012	10.182457464610664
2013	9.63566924320355
2014	9.427276059023566
2015	9.42198045274487
2016	8.997610497684475
2017	9.784503153472745
2018	10.60870032740958
2019	10.913069809647599
2020	7.9265048276991665
2021	8.224031807535773
2022	9.006746381967103