Year	Number of
1990	868.52
1991	893.92
1992	949.93
1993	1021.07
1994	1118.86
1995	1191.92
1996	1267.57
1997	1297.98
1998	1346.97
1999	1412.13
2000	1442.51
2001	1527.31
2002	1593
2003	1697.07
2004	1725.69
2005	1764.09
2006	1837.05
2007	1895.83
2008	1957.25
2009	2018.65
2010	2100.98
2011	2153.09
2012	2187.51
2013	2205.41
2014	2242.72
2015	2242.49
2016	2243.93