Year	Number of
1990	972.82
1991	1005.6
1992	1029.36
1993	1055.08
1994	1094.65
1995	1146.17
1996	1193.68
1997	1228.19
1998	1276.12
1999	1350.37
2000	1430.16
2001	1482.17
2002	1522.3
2003	1577.65
2004	1671.93
2005	1729.95
2006	1754.85
2007	1804.21
2008	1845.21
2009	1869.97
2010	1888.29
2011	1941.51
2012	2002.05
2013	2044.65
2014	2065.41
2015	2081.29
2016	2087.6