Year Number 1970 160091.046875 1971 161385.046875 1972 172097.3125 1973 179974.53125 1974 183486.265625 1975 195556.609375 1976 207531.53125 1977 217823.0625 1978 239640.28125 1979 265386.53125 1980 290879.5 1981 318608.21875 1982 365591.3125 1983 387152.65625 1984 427549.65625 1985 430876.75 1986 443238.34375 1987 473958.25 1988 505353.5 1989 518694.03125 1990 529803.6875 1991 546603.4375 1992 563624.875 1993 585030.8125 1994 601580.125 1995 606075.3125 1996 621024.625 1997 627895.6875 1998 650323.5 1999 677278.0625 2000 723651.5625 2001 786608.5 2002 846111.0625 2003 921534.25 2004 966850.6875 2005 1035447.625 2006 1153745 2007 1246122.875 2008 1424107 2009 1578626 2010 1704591 2011 2016546 2012 1951802.875 2013 2345152.25 2014 2414426.75 2015 2604490.75 2016 2598121.25 2017 2737485.75 2018 2802447 2019 2955600 2020 3127299 2021 3258532.75 2022 3371028.75