Year	% of GDP
1990	7.442801568837064
1991	10.242860165184007
1992	9.993845949856741
1993	9.20041893348368
1994	8.1789368617001
1995	7.216889769257244
1996	6.862980184002922
1997	8.679860472788098
2012	32.40902057993569
2013	34.92985930149743
2014	36.500264021550564
2015	37.49295710971409
2016	38.065514156892235
2017	37.34863513754767
2018	37.55564317939423
2019	39.96948013704399
2020	46.43159664233785
2021	48.95527864350397
2022	51.17913231981569