Year	% of GDP
1974	2.887454430175758
1975	3.9020119856339277
1976	4.144352734753805
1977	3.8308644092990924
1978	4.4004080833017065
1979	4.189793374142065
1980	5.023021842206164
1981	4.552149904254726
1982	4.767804618642821
1983	4.645134000367787
1984	4.9697002181649506
1985	5.54872010443318
1986	5.620576098076517
1987	4.626591053695299
1988	4.402801460534975
1989	4.588693947852939
1990	4.169240799300017
1991	3.188489564851114
1992	2.7283049368262526
1993	3.0058114537834513
1994	2.975975602216556
1995	2.8349592573495297
1996	2.6512607980011826
1997	1.9076033619594996
1998	1.794307688148466
1999	1.9417255299347778
2000	1.5093080854364633
2001	1.7290011952676407
2002	0.5155093119661809
2003	-0.32206066603892713
2004	1.7989643200836642
2005	1.0822763196305596
2006	0.2904120872909431
2007	1.6781242596702968
2008	-0.0038133174797828216
2009	0.7750303009768671
2010	1.0293652486987979
2011	0.9188460224558731
2012	0.894288872664932
2013	1.2454132409570453
2014	0.7492941302580334
2015	1.0332652462725935
2016	0.8831800453154443
2017	0.7966220401124571
2018	0.6910171753759706