Year	Number of
1990	110617.27
1991	112147.3
1992	113687.29
1993	115844.5
1994	117483.63
1995	118740.27
1996	117408.82
1997	115442.14
1998	115719.53
1999	116246.67
2000	117038.75
2001	117824.88
2002	118014.53
2003	117563.13
2004	117455.89
2005	116718.09
2006	114578.36
2007	114595.64
2008	116413.46
2009	118144.35
2010	119634.03
2011	121392.91
2012	123754.29
2013	126251.51
2014	128616.51
2015	133081.72
2016	136735.4