Year	% of GDP
1990	151.932062424073
1991	127.76574770404
1992	119.891095610373
1993	125.723783847649
1994	139.389106430007
1995	141.986370046273
1996	151.790535262256
1997	162.056700141215
1998	144.605809763056
1999	134.958077555356
2000	133.984946553311
2001	136.161155121857
2002	140.307653269264
2003	143.525676530574
2004	143.872626958219
2005	139.768536000708
2006	131.999101407456
2007	122.699639195617
2008	122.343271310411
2009	164.057075718173
2010	195.35808745212
2011	207.14017834711
2012	201.105362338548
2013	222.597206853092
2014	235.993845544589
2015	211.866810881131
2016	237.954003566185
2017	249.140837931713
2018	251.985683458117