Year	Number of
1990	64859.17
1991	67872.05
1992	71175.22
1993	74602.21
1994	77982.05
1995	81362.12
1996	82940.03
1997	84281.43
1998	85945.55
1999	87742.33
2000	90214.05
2001	92329.56
2002	93834.59
2003	94739.9
2004	96123.73
2005	96652.24
2006	95909.61
2007	96963.61
2008	99212
2009	101661.26
2010	103498.57
2011	105536.05
2012	107825.6
2013	109978.77
2014	112250.32
2015	115751.69
2016	118692.46