Year	Percent of GDP
1978-01-01	24.6476203995966
1979-01-01	25.5248612350778
1980-01-01	26.3049086201434
1981-01-01	24.5242415438050
1982-01-01	24.6236454957177
1983-01-01	21.9169518889836
1984-01-01	22.3056000782239
1985-01-01	23.5427772019490
1986-01-01	25.7648466530752
1987-01-01	23.8844229244184
1988-01-01	22.6694755327070
1989-01-01	23.0289560312175
1990-01-01	22.6506667860062
1991-01-01	20.8463725142703
1992-01-01	19.8818709767687
1993-01-01	19.9232825021160
1994-01-01	21.5652302893226
1995-01-01	21.6524712671403
1996-01-01	21.7754484883122
1997-01-01	22.0626396606312
1998-01-01	24.2872946013922
1999-01-01	21.0661967949835
2000-01-01	20.1375307780986
2001-01-01	18.8363963956500
2002-01-01	17.7328895350023
2003-01-01	17.4869318536229
2004-01-01	18.2471853200041
2005-01-01	18.0380341163104
2006-01-01	18.5548557043584
2007-01-01	19.9421611101042
2008-01-01	19.2890332674883
2009-01-01	17.6932916732713
2010-01-01	17.9609229721647
2011-01-01	18.1975325724075
2012-01-01	17.0970276116516
2013-01-01	17.1215022740056
2014-01-01	17.8508202314030
2015-01-01	19.6945650991945
2016-01-01	20.2485002430319
2017-01-01	20.6862995396022