Year	% of GDP
2001	116.120568091008
2002	109.370836212955
2003	105.452409720613
2004	99.6247875871913
2005	100.753240649183
2006	106.000359392779
2007	108.786597526925
2008	110.601444533348
2009	116.053593500336
2010	113.679110272377
2011	114.000743327135
2012	113.234551423342
2013	112.062808820313
2014	154.538292459682
2015	147.739968625845
2016	152.992654108633
2017	135.046547556837
2018	136.808257919933