Year	Number of
1990	1429.05
1991	1478.1
1992	1534.06
1993	1583.18
1994	1652.41
1995	1709.45
1996	1786.01
1997	1851.35
1998	1926.77
1999	1986.25
2000	2014.42
2001	2035.8
2002	2043.77
2003	2055.4
2004	2029.8
2005	2012.76
2006	2012.18
2007	1964.97
2008	1959.75
2009	1973.88
2010	1986.55
2011	1913.26
2012	1906.29
2013	1887.35
2014	1909.15
2015	1929.88
2016	1947.53