Year	% of GDP
1978	9.921543408360128
1979	10.351615694147117
1980	9.279249273350395
1981	8.84181009325104
1982	9.02058955603598
1983	14.713112232389747
1984	14.421885051789774
1985	15.703660042785037
1986	13.762321049268403
1987	10.358881753706822
1988	8.080561265987257
1989	10.13170892645702
1990	9.22795710820431
1991	9.090611648688421
1992	10.786954107871752
1993	11.830381254418407
1994	12.54564564042704
1995	11.48791949008717
1996	10.907384995308288
1997	9.648415351676048
1998	8.676868379467354
1999	8.605339878808433
2000	9.452673072578174
2001	9.23141545323201
2002	10.21114128312876
2003	11.685880868847393
2004	13.865173930403213
2005	12.963079609474526
2006	11.98549412668097
2007	12.452681401730873
2008	12.211202717188224
2009	11.050825351641521
2010	10.057323170270436
2011	11.30689919334506
2012	16.78770013938829
2013	16.487124678699644
2014	16.212852377385822
2015	16.44208652203043
2016	15.286307814993961
2017	15.268178790248724
2018	15.432389270006178
2019	16.295325965941686
2020	13.61887224952828
2021	12.695482086639556
2022	15.709020077143798
2023	15.642418317314375