Year	Number of
1990	852.73
1991	884.37
1992	918.38
1993	955.27
1994	994.63
1995	1031.72
1996	1073.31
1997	1115.72
1998	1164.16
1999	1206.46
2000	1251.43
2001	1293.17
2002	1337.73
2003	1383.46
2004	1428.45
2005	1473.39
2006	1517.28
2007	1567.51
2008	1623.25
2009	1684.98
2010	1748.64
2011	1812.57
2012	1879.27
2013	1949.27
2014	2027.33
2015	2108.99
2016	2190.48