Year Number of 1990 849.08 1991 901.46 1992 941.74 1993 977.73 1994 1008.93 1995 1052.66 1996 1087.41 1997 1110.97 1998 1128.63 1999 1180.28 2000 1209.72 2001 1259.81 2002 1302.74 2003 1371.23 2004 1428.51 2005 1487.6 2006 1540.81 2007 1552.7 2008 1589.19 2009 1656.96 2010 1739.48 2011 1755.85 2012 1809 2013 1838.82 2014 1894.89 2015 1960.79 2016 2023.63