Year	Percent
1995	5.859
1996	6.202
1997	5.488
1998	5.488
1999	5.398
2000	4.676
2001	4.478
2002	4.467
2003	6.554
2004	7.902
2005	7.798
2006	6.087
2007	5.002
2008	4.281
2009	5.787
2010	5.88