Year	Percent of GDP
1988-01-01	16.1478194412112
1989-01-01	20.0385987436376
1990-01-01	20.6995730549875
1991-01-01	19.2933128841666
1992-01-01	22.0520972497328
1993-01-01	21.4067359174805
1994-01-01	22.3707315191656
1995-01-01	22.4722653634408
1996-01-01	21.2566930151374
1997-01-01	21.1441914060767
1998-01-01	22.0102377823367
1999-01-01	24.2352372441880
2000-01-01	25.9010589338729
2001-01-01	25.1247301398047
2002-01-01	24.1902760185081
2003-01-01	22.4741629283805
2004-01-01	22.7281443925772
2005-01-01	23.2035564024835
2006-01-01	24.1469266510715
2007-01-01	22.8357887916502
2008-01-01	25.4571359648190
2009-01-01	21.0190815588066
2010-01-01	21.0280205510264
2011-01-01	22.2460592678507
2012-01-01	21.8751214889368
2013-01-01	21.1844419396433
2014-01-01	21.2755007947818
2015-01-01	20.8374247911110
2016-01-01	19.3562512917762
2017-01-01	19.9920129497758