Year Number 1983 1581105.625 1984 1557599 1985 1546529 1986 1560322.75 1987 1560650 1988 1580574.25 1989 1598678 1990 1608151.375 1991 1597407.875 1992 1591764.125 1993 1578074.75 1994 1594792.125 1995 1622240 1996 1648769.25 1997 1680714.25 1998 1709507.75 1999 1759004.75 2000 1780866.625 2001 1805116.125 2002 1812072.375 2003 1802371.625 2004 1791081.375 2005 1781228 2006 1774371 2007 1775990.75 2008 1789143.125 2009 1806659.875 2010 1830439.125 2011 1856104.75 2012 1867628.375 2013 1876659.75 2014 1886104.125 2015 1925142 2016 1977853.25 2017 2004141.625 2018 2002464.625 2019 1946356.25 2020 1946315.625 2021 2009826.25 2022 2044659.375