Year Number of 1990 771.78 1991 810.99 1992 855.75 1993 905.6 1994 952.22 1995 995.54 1996 1052.26 1997 1110.96 1998 1176.27 1999 1252.95 2000 1304.2 2001 1343.66 2002 1380.24 2003 1424.9 2004 1469.6 2005 1518.24 2006 1556.9 2007 1610.79 2008 1671.87 2009 1739.27 2010 1806.7 2011 1862.65 2012 1920.11 2013 1971.79 2014 2027.54 2015 2101.94 2016 2194.08