Year	Percent of GDP
1963-01-01	14.2438014810257
1964-01-01	11.2173335724685
1965-01-01	14.6163833914109
1966-01-01	17.6539001772198
1967-01-01	20.2113322235006
1968-01-01	23.5187270825503
1969-01-01	23.5781481067320
1970-01-01	21.7984592821694
1971-01-01	24.1983841399899
1972-01-01	23.1807774315804
1973-01-01	30.1890545299202
1974-01-01	35.1620476886858
1975-01-01	33.8609642666539
1976-01-01	29.3871711821205
1977-01-01	28.2679175801357
1978-01-01	28.7805776626646
1979-01-01	30.4615095347595
1980-01-01	34.2713820417892
1981-01-01	36.0605742696818
1982-01-01	31.2093840841757
1983-01-01	30.0887641255945
1984-01-01	31.8343995874162
1985-01-01	30.9408393432227
1986-01-01	27.7296278874662
1987-01-01	27.9755499115056
1988-01-01	26.2716105532504
1989-01-01	25.1910680282114
1990-01-01	25.0005533874794
1991-01-01	25.0983556064459
1992-01-01	23.3899249641047
1993-01-01	21.7257539454175
1994-01-01	22.4686670938084
1995-01-01	24.3295585329504
1996-01-01	25.1389364394270
1997-01-01	25.6704179545683
1998-01-01	24.9444207992764
1999-01-01	24.5416199536999
2000-01-01	28.6597094017492
2001-01-01	26.5283326027881
2002-01-01	24.9195286878809
2003-01-01	26.2524059218601
2004-01-01	29.3114508314124
2005-01-01	29.1282868958766
2006-01-01	30.6450198187695
2007-01-01	31.7619246211414
2008-01-01	42.8646074521055
2009-01-01	35.5511284932365
2010-01-01	38.8082373967354
2011-01-01	43.6062590044305
2012-01-01	42.4015480824008
2013-01-01	39.4859539882511
2014-01-01	37.2319014139858
2015-01-01	31.5590593497080
2016-01-01	28.6250446688766
2017-01-01	31.3156807551351