Year	Number of
1990	3300.03
1991	3424.91
1992	3563.93
1993	3694.41
1994	3846.62
1995	4026.11
1996	4158.92
1997	4294.84
1998	4430.9
1999	4550.6
2000	4656.76
2001	4807.76
2002	4964.6
2003	5165.05
2004	5363.33
2005	5558.56
2006	5829.91
2007	6096.18
2008	6369.68
2009	6670.83
2010	7020.08
2011	7161.89
2012	7338.97
2013	7523.48
2014	7728.59
2015	7953.09
2016	8200.81