Year	Number of
1990	825.37
1991	881.21
1992	947.82
1993	1009.48
1994	1076.2
1995	1150.64
1996	1219.82
1997	1291.28
1998	1374.39
1999	1444.13
2000	1504.51
2001	1551.27
2002	1605.92
2003	1661.46
2004	1728.98
2005	1783.97
2006	1833.91
2007	1892.16
2008	1940.81
2009	1991.45
2010	2058.45
2011	2134.94
2012	2210.16
2013	2284.27
2014	2384.29
2015	2488.28
2016	2562.7