Year	Number of
1990	729.48
1991	774.37
1992	822.84
1993	875.55
1994	931.89
1995	992.06
1996	1043.68
1997	1098.11
1998	1155.5
1999	1216.03
2000	1280.06
2001	1351.59
2002	1428.7
2003	1519.57
2004	1614.23
2005	1709.95
2006	1788.96
2007	1870.27
2008	1962.73
2009	2064.08
2010	2176.64
2011	2258.07
2012	2347.03
2013	2434.39
2014	2527
2015	2624.72
2016	2724.32