Year	Percent
1990	1.10409
1991	1.05934
1992	1.05073
1993	1.04155
1994	1.0333
1995	1.0251
1996	1.02459
1997	1.02681
1998	1.02748
1999	1.02339
2000	1.022
2001	1.02428
2002	1.02231
2003	1.01899
2004	1.02202
2005	1.02017
2006	1.02542
2007	1.02168