Year	Number of
1990	721.15
1991	764.33
1992	810.09
1993	857.85
1994	909.44
1995	966.29
1996	1011.82
1997	1059.74
1998	1108.9
1999	1159.2
2000	1217.74
2001	1265.83
2002	1313.76
2003	1362.27
2004	1414.51
2005	1473.39
2006	1531.78
2007	1592.8
2008	1657.63
2009	1727.61
2010	1804.97
2011	1867.14
2012	1933.95
2013	2003.14
2014	2069.48
2015	2138.72
2016	2211.77