Year	Number of
1990	1807.67
1991	1798.03
1992	1848.5
1993	1891.58
1994	1937.99
1995	2003.2
1996	2090.37
1997	2097.89
1998	2098.41
1999	2055.68
2000	2054.87
2001	2097.2
2002	2136.39
2003	2128.97
2004	2062.87
2005	2076.64
2006	2041.35
2007	2007.34
2008	2016.43
2009	2014.01
2010	1948.4
2011	1829.33
2012	1834.53
2013	1854.22
2014	1856.63
2015	1792.5
2016	1742.14