Year	Number of
1990	1110.03
1991	1146.86
1992	1215.09
1993	1283.25
1994	1348.67
1995	1425.46
1996	1432.68
1997	1546.17
1998	1650.46
1999	1769.26
2000	1904.35
2001	1920.18
2002	1955.5
2003	1995.87
2004	2001.6
2005	2013.95
2006	2003.27
2007	2014.44
2008	2031.53
2009	2047.47
2010	2068.78
2011	2081.15
2012	2101.05
2013	2118.87
2014	2138.2
2015	2158.33
2016	2180.63