Year	Percent of GDP (Units)
1990	173.297
1991	163.215
1992	151.503
1993	148.736
1994	136.865
1995	123.898
1996	109.333
1997	111.647
1998	115.287
1999	107.641
2000	112.850
2001	105.766
2002	95.696
2003	95.147
2004	85.380
2005	31.240
2006	28.817
2007	27.041
2008	21.688
2009	17.937
2010	18.807