Year	% of GDP
1990	23.302674215635996
1991	21.767432414807814
1992	22.917042668628817
1993	22.99746627563028
1994	22.207134590233622
1995	20.5650572366769
1996	19.55342072356703
1997	20.000019893186117
1998	21.057033582545426
1999	21.17140878432944
2000	19.90227869646237
2001	20.84117272336706
2002	23.181672007895408
2003	20.866303405513275
2004	19.369152546486372
2005	17.313598390470734
2006	16.289942639832475
2007	16.005424405910055
2008	16.21776504297994
2009	19.762498014439807
2010	19.46755287184054
2011	22.50323471349353
2012	21.723662779996783
2013	23.35512356516309
2014	24.48672830016139
2015	26.46659238575037
2016	25.7413834307956
2017	23.653977980049987
2018	23.519755077231213
2019	22.763182563267875
2020	27.02537327686798