Year	Number of
1990	1258.99
1991	1306.93
1992	1355.15
1993	1411.6
1994	1469.4
1995	1529.19
1996	1564.19
1997	1703.62
1998	1850.44
1999	2013.54
2000	2185.18
2001	2218.31
2002	2274.85
2003	2336.69
2004	2406.02
2005	2479.04
2006	2543.73
2007	2603.72
2008	2665.84
2009	2730.9
2010	2804.72
2011	2872.56
2012	2949.5
2013	3028.47
2014	3114.14
2015	3203.56
2016	3308.32