Year Number 1970 352420.28125 1971 377771.625 1972 430060.8125 1973 464878.9375 1974 559468.9375 1975 597575.9375 1976 656377 1977 713303.9375 1978 743526.25 1979 767643.25 1980 785004.75 1981 804503.6875 1982 827083.25 1983 849117.9375 1984 877635.5625 1985 909303.0625 1986 957432.5 1987 1010433.3125 1988 1054034.75 1989 1088925.125 1990 1120861.25 1991 1150338.75 1992 1177463 1993 1209673.875 1994 1247376.75 1995 1282980.75 1996 1343702.5 1997 1378296.5 1998 1463032.75 1999 1538205.875 2000 1566949.5 2001 1493301.5 2002 1875889.375 2003 1996064.5 2004 2063175.375 2005 2133068.25 2006 1772872.125 2007 1766940.125 2008 1875866.125 2009 1905858.125 2010 1943361.375 2011 1967816 2012 1992503.875 2013 2004170.625 2014 2071640.125 2015 2073281.5 2016 2084114.625 2017 2065607.625 2018 2079182.875 2019 2072264.875 2020 2076088.5 2021 2106132 2022 2141382.5