Year	Number of
1990	2722.29
1991	2674.95
1992	2797.54
1993	2821.91
1994	2852.05
1995	2916.37
1996	2911.27
1997	2873.69
1998	2750.54
1999	2655.73
2000	2649.25
2001	2725.32
2002	2752.26
2003	2714.94
2004	2654.76
2005	2624.14
2006	2579.5
2007	2573.47
2008	2648.87
2009	2625.83
2010	2604.43
2011	2442.87
2012	2443.2
2013	2419.46
2014	2469.39
2015	2432.82
2016	2437.6