Year	Percent of GDP (Units)
1990	39.979
1991	35.587
1992	36.118
1993	23.035
1994	47.310
1995	31.100
1996	43.582
1997	40.545
1998	34.683
1999	35.564
2000	42.845
2001	38.926
2002	36.781
2003	36.424
2004	33.299
2005	31.423
2006	36.133
2007	35.194
2008	34.325
2009	32.086
2010	29.151
2011	28.821
2012	30.229
2013	28.915
2014	28.833
2015	26.659
2016	28.284
2017	30.572
2018	32.325
2019	31.174
2020	19.552
2021	9.133
2022	12.673