Year	Number of
1990	2057.39
1991	2028.34
1992	1981.58
1993	1950.19
1994	1917.43
1995	1900.99
1996	1882.52
1997	1883.31
1998	1889.01
1999	1895.03
2000	1891.02
2001	1897.29
2002	1904.17
2003	1922.25
2004	1946.75
2005	1945.57
2006	1922.51
2007	1914.48
2008	1922.33
2009	1908
2010	1902.47
2011	1907.27
2012	1905.08
2013	1901.03
2014	1904.04
2015	1950.87
2016	1982.45