Year	% of GDP
2000	7.50009153318078
2001	26.103642384106
2002	26.1031283710895
2003	23.7980748663102
2004	21.2765997770346
2005	19.4545416227608
2006	19.4543342269884
2007	19.4538820101967
2008	19.5014368482039
2009	19.4546153846154
2010	19.4546346346346
2011	19.4545120934112
2012	19.4543366409408
2013	19.454404955983
2014	19.4932951653944
2015	20.1573245199874
2016	20.084043509326
2017	20.4861457545454
2018	12.9886118805786