Year	Percent of GDP (Units)
1992	39.510
1993	71.445
1994	59.045
1995	58.261
1996	50.242
1997	54.500
1998	47.643
1999	46.320
2000	59.342
2001	49.915
2002	46.782
2003	64.379
2004	49.402
2005	45.599
2006	34.993
2007	31.376
2008	31.417
2009	22.780
2010	25.928
2011	26.749
2012	28.108
2013	25.105
2014	21.477
2015	28.315
2016	29.500
2017	36.755
2018	31.581
2019	33.973