Year	Number of
1990	1121.23
1991	1116.8
1992	1104.36
1993	1087.25
1994	1073.92
1995	1057.84
1996	1034.44
1997	1003.31
1998	973.52
1999	950.81
2000	929.03
2001	904.71
2002	889.36
2003	877.33
2004	870.74
2005	854.62
2006	846.78
2007	833.07
2008	832.52
2009	832.07
2010	813.05
2011	800.68
2012	789.58
2013	774.55
2014	776
2015	776.49
2016	784.9