Year	% of GDP
1996	17.501548307210584
1997	17.039249484536086
1998	13.86313668591533
1999	10.875417570072074
2000	9.004792275172942
2001	6.957605141504115
2002	6.925822163341645
2003	7.059432039636664
2004	10.42678608176774
2005	22.374120627733266
2006	36.97982698291203
2007	43.28254054263903
2008	32.91183629667746
2009	36.299354220881966
2010	33.02825070846104
2011	22.659131560628584
2012	20.62530692798456
2013	22.756391942353513
2014	23.553591132133693
2015	22.794113627535708
2016	23.7012079238305
2017	21.671266499601636
2018	17.622791042606252
2019	14.990129299451324
2020	21.136298221162892
2021	45.72586340854643