Year	% of GDP
1990	92.51409183687262
1991	105.40844366724957
1992	99.55306640950987
1993	107.15470449208799
1994	97.54453009384454
1995	97.83503006259502
1996	85.88706252266853
1997	84.17515652708913
1998	96.96730547174731
1999	83.6189558913382
2000	73.86037975577045
2001	79.61441573045201
2002	82.25688189660634
2003	80.77962314311527
2004	78.79687457333557
2005	76.40571095349512
2006	83.16920762608144
2007	90.12227751577656
2008	90.15490094142976
2009	97.87626061833554
2010	92.73441328566534
2011	96.87809742882983
2012	102.92991059786829
2013	99.68690664728669
2014	99.03658412706346
2015	111.88972485937883
2016	121.62544622202228
2017	123.49204716270236
2018	135.56197837645468