Year	Percent
1995	4.689
1996	5.766
1997	3.202
1998	2.928
1999	3.923
2000	4.807
2001	4.053
2002	4.516
2003	6.525
2004	6.596
2005	4.731
2006	5.052
2007	5.612
2008	5.132
2009	6.634
2010	6.634