Year	Percent of GDP
1960-01-01	16.3525598646362
1961-01-01	16.7375856167111
1962-01-01	15.6621072203761
1963-01-01	14.7821107467591
1964-01-01	13.8684757257642
1965-01-01	12.8171309281902
1966-01-01	13.4192274937877
1967-01-01	13.9983547142127
1968-01-01	14.1885258621398
1969-01-01	12.9409659076678
1970-01-01	18.1439313327730
1971-01-01	17.0753853711355
1972-01-01	19.1802837582686
1973-01-01	20.5717252535198
1974-01-01	23.4899677267161
1975-01-01	22.8877663034980
1976-01-01	21.2657159707370
1977-01-01	24.3255526591232
1978-01-01	27.2681929580613
1979-01-01	31.5105813948322
1980-01-01	30.6265183516810
1981-01-01	24.1697413856641
1982-01-01	22.4296010216183
1983-01-01	21.2867465298316
1984-01-01	21.9691999858532
1985-01-01	27.4135629223777
1986-01-01	27.1517396003140
1987-01-01	23.9308621006585
1988-01-01	22.8276102899044
1989-01-01	22.3781265523930
1990-01-01	20.3849476845229
1991-01-01	18.7349081192365
1992-01-01	17.3415338796185
1993-01-01	17.8211288501868
1994-01-01	17.8474791721248
1995-01-01	18.3890920253899
1996-01-01	19.5624295717691
1997-01-01	20.2285770231264
1998-01-01	19.0587511161812
1999-01-01	19.5352164213154
2000-01-01	21.9675447605471
2001-01-01	23.8173288226125
2002-01-01	25.5910084292940
2003-01-01	20.6972687293447
2004-01-01	19.7493330352118
2005-01-01	20.0937984894749
2006-01-01	21.3252719588973
2007-01-01	23.1782826883814
2008-01-01	27.5853274094977
2009-01-01	20.8355445839365
2010-01-01	24.1391394951871
2011-01-01	26.0982045562628
2012-01-01	25.2146419248388
2013-01-01	26.0581099396441
2014-01-01	26.0696697446950
2015-01-01	25.6146688082660
2016-01-01	25.7877518733425
2017-01-01	25.4309336849318