Year	% of GDP
1972	2.353869160908949
1973	1.9889760992110834
1974	1.7862215851306853
1975	1.9452368477622624
1976	1.6527091113087786
1977	1.7068588174458066
1978	1.4053960035761979
1979	1.5300735119093225
1980	1.505630990369115
1981	1.4960052512640236
1982	1.4770422997659511
1983	1.7437980061797222
1984	1.3647572483913861
1985	1.296241053971539
1986	1.3290207641847191
1987	1.261980705226146
1988	1.3187943192946705
1989	1.2213015302423305
1990	1.1748876798738332
1991	1.2102315379507589
1992	1.1537602088888539
1993	0.944276266081102
1994	0.9044254825201093
1995	2.3988216000755056
1996	2.4288172888094883
1997	2.5154336618985176
1998	2.322806720617901
1999	2.1632041397215245
2000	1.893247142341317
2001	1.601263221889579
2002	1.7658765922970585
2003	1.8237370993403053
2004	2.0049941493285757
2005	1.8090120933688267
2006	1.5201713505315881
2007	1.6500755434235643
2008	1.6351080431111678
2009	1.8158929248262419
2010	1.599097888101285
2011	1.6035969075611773
2012	1.7568270350656396
2013	1.76589208927956
2014	1.713052342911294
2015	1.4639153350224898
2016	1.529100401025644