Year	% of GDP
1990	16.283220761505433
1991	15.896028083568805
1992	16.31328918552908
1993	19.28217527530721
1994	18.50406481302605
2002	20.668760033293015
2003	20.794876310874997
2004	22.48814195842493
2005	23.097135342799056
2006	23.990365820538322
2007	23.820055184808613
2008	22.353573923286476
2009	18.469142396174966
2010	20.87992515032972
2011	21.171271858998004
2012	18.280423098221174
2013	17.729795748381463
2014	17.87241561019883
2015	16.663103906984578
2016	17.469102581051807
2017	17.588376486462902
2018	17.44085289264344
2019	18.774766952434216
2020	18.785046991982036
2021	21.02479589305684
2022	20.316311270468624