Year	Number of
1990	1792.9
1991	1840.48
1992	1990.38
1993	2107.02
1994	2271.7
1995	2425.45
1996	2518.66
1997	2575.41
1998	2506.11
1999	2323.78
2000	2328.68
2001	2462.61
2002	2531.06
2003	2596.95
2004	2638.88
2005	2700.14
2006	2772.98
2007	2879.33
2008	3069.55
2009	3167.89
2010	3243.97
2011	3134.85
2012	3224.42
2013	3255.45
2014	3357.51
2015	3351.14
2016	3322.67