Year	% of GDP
1993	4.964369603511058
1994	8.132156252121531
1995	8.679926579310813
1996	12.962978347385654
1997	20.371749708945234
1998	32.97831182281895
1999	28.705091556134338
2000	22.707850178578468
2001	20.813447536378423
2002	23.814268743341703
2003	23.513979995824734
2004	27.992360974876167
2005	36.41539367145675
2006	39.419752748952284
2007	33.824687003665225
2008	28.085670565419818
2009	28.47882795607579
2010	28.355701253407595
2011	30.79522264405123
2012	31.026695721214846
2013	27.565849925109486
2014	27.555096611873864
2015	24.355466078037708
2016	23.423430735463505
2017	24.152826163494513
2018	23.25272781582984
2019	24.77561264475613
2020	24.416224049015405
2021	22.932099127935697
2022	20.422748334245718