Year	Percent
1995	3.408
1996	3.189
1997	3.581
1998	3.689
1999	3.685
2000	3.352
2001	3.7
2002	3.757
2003	3.626
2004	3.913
2005	5.958
2006	6.048
2007	5.355
2008	5.235
2009	5.416
2010	5.161