Year	% of GDP
1990	189.24628555764204
1991	78.21675120639091
1992	80.14272903723301
1993	70.61609845441184
1994	55.491534708203574
2006	32.53945754363109
2007	28.528818392682574
2008	26.076322347553038
2009	26.400865875359603
2010	23.681791339694136
2011	20.72021657241332
2012	19.2166594587652
2013	18.39442038353452
2014	19.56538960172005
2015	22.865554469276955
2016	23.706256434241464
2017	24.74833951200717
2018	25.72900095760633
2019	26.526605030409563
2020	34.76491504383611
2021	35.24525371318484