Year	Number of
1990	84112.13
1991	85808.68
1992	87833.36
1993	90780.14
1994	93611.63
1995	96436.65
1996	100411.49
1997	104345.99
1998	108186.41
1999	112051.54
2000	117147.76
2001	121949.1
2002	126925.69
2003	130728.3
2004	135501.54
2005	141515.55
2006	143080.89
2007	145934.35
2008	149010.56
2009	152343.08
2010	155464.11
2011	156371.32
2012	158156.45
2013	159880.5
2014	163360.8
2015	165474.21
2016	166806.68