Year	Number of
1990	781.43
1991	820.04
1992	863.03
1993	908.25
1994	951.79
1995	990.26
1996	1022.74
1997	1047.15
1998	1070.64
1999	1099.98
2000	1132.69
2001	1163.45
2002	1194.38
2003	1229.21
2004	1273.51
2005	1321.36
2006	1367.2
2007	1408.86
2008	1451.12
2009	1489.96
2010	1529.08
2011	1575.75
2012	1637.55
2013	1706.28
2014	1777.27
2015	1849.25
2016	1915.93