Year	% of GDP
2001	102.78097776622
2002	100.525182497612
2003	102.605929111173
2004	103.096737771116
2005	106.060008890625
2006	127.01840921007
2007	137.582004368072
2008	143.239040745239
2009	140.570030706117
2010	143.848134280297
2011	145.879140231902
2012	147.673692696873
2013	143.813566006625
2014	146.773577577084
2015	147.414475407927
2016	154.814113240551
2017	157.440819707346
2018	159.95512283848