Year	Number of
1990	1681.69
1991	1750.18
1992	1823.85
1993	1902.89
1994	1983.55
1995	2066.91
1996	2052.95
1997	2040.51
1998	2029.14
1999	2014.46
2000	1996
2001	1972.07
2002	1945.7
2003	1915.24
2004	1888.8
2005	1864.78
2006	1861.8
2007	1864.76
2008	1867.15
2009	1868.95
2010	1873.07
2011	1879.73
2012	1890.74
2013	1901.03
2014	1913.73
2015	1940.2
2016	1970.06