Year	Number of
1990	592.84
1991	601.69
1992	615.36
1993	623.78
1994	647.39
1995	654.1
1996	660.25
1997	699.34
1998	766.58
1999	854.1
2000	934.53
2001	998.22
2002	1063.07
2003	1142.2
2004	1199.51
2005	1225.43
2006	1172.64
2007	1144.08
2008	1149.42
2009	1163.02
2010	1184.26
2011	1187.1
2012	1197.6
2013	1223.07
2014	1242.73
2015	1260.69
2016	1284.28