Year	Number of
1990	4549.61
1991	4686.9
1992	4827.36
1993	4956.71
1994	5090.28
1995	5232.89
1996	5391.47
1997	5553.41
1998	5722.95
1999	5897.69
2000	6077.88
2001	6207.06
2002	6325.2
2003	6442.58
2004	6563.59
2005	6696.9
2006	6819.15
2007	6947.65
2008	7076.29
2009	7210.24
2010	7360.14
2011	7546.74
2012	7726.68
2013	7906.44
2014	8086.04
2015	8265.5
2016	8446.06