Year	Number of
1990	914.63
1991	948.42
1992	985.65
1993	1025.74
1994	1068.09
1995	1113.11
1996	1143.41
1997	1175.56
1998	1209.82
1999	1246.76
2000	1287.3
2001	1323.97
2002	1364.68
2003	1409.24
2004	1456.69
2005	1507.76
2006	1552.82
2007	1598.04
2008	1646.81
2009	1699.28
2010	1757.43
2011	1803.21
2012	1855.84
2013	1912.39
2014	1971.84
2015	2033.59
2016	2093.61