Year	Percent of GDP
1989-01-01	17.051
1990-01-01	16.442
1991-01-01	21.648
1992-01-01	27.679
1993-01-01	30.722
1994-01-01	31.781
1995-01-01	31.235
1996-01-01	29.423
1997-01-01	25.955
1998-01-01	23.763
1999-01-01	22.605
2000-01-01	19.562
2001-01-01	17.176
2002-01-01	15.057
2003-01-01	13.230
2004-01-01	11.962
2005-01-01	10.900
2006-01-01	9.978
2007-01-01	9.701
2008-01-01	11.769
2009-01-01	16.789
2010-01-01	20.524
2011-01-01	24.153
2012-01-01	27.773
2013-01-01	30.726
2014-01-01	34.148
2015-01-01	37.836
2016-01-01	40.632