Year	Number of
1990	927.51
1991	964.08
1992	1013.05
1993	1062.73
1994	1103.3
1995	1143.42
1996	1111.32
1997	1076.34
1998	1024.35
1999	951.16
2000	965.49
2001	955.05
2002	946.78
2003	946.79
2004	946.75
2005	951.53
2006	963.47
2007	989.38
2008	1016.58
2009	1050.02
2010	1081.1
2011	1106.81
2012	1123.75
2013	1130.85
2014	1138.02
2015	1155.98
2016	1176.2