Year	Percent
1970	1.01629
1971	1.04902
1972	1.04439
1973	1.05985
1978	1.07533
1979	1.02784
1994	1.06895
1995	1.0746
1998	1.12045
1999	1.06285
2000	1.05078
2001	1.04946
2002	1.04491
2003	1.05582
2004	1.05561
2005	1.05431
2006	1.05638
2007	0.97894
2008	1.03878
2009	1.03801
2010	1.04142