Year Number 1970 442027.90625 1971 455148.96875 1972 468740.625 1973 493324.46875 1974 512506.5 1975 540291.8125 1976 579136.5625 1977 616636.625 1978 665478.5 1979 708758.25 1980 737249.8125 1981 767401.125 1982 792825.5 1983 830202.125 1984 863172.5625 1985 886398.4375 1986 932690.375 1987 944849.5625 1988 963918.6875 1989 979785.375 1990 972973.5 1991 1010361.125 1992 1038981.75 1993 1067206.375 1994 1080673.125 1995 1130540.125 1996 1162204 1997 1212422 1998 1255322.75 1999 1310237.375 2000 1339628.875 2001 1414026.5 2002 1542167.5 2003 1632376.375 2004 1751982.625 2005 1855776 2006 1988568.625 2007 2103852.75 2008 2253359.25 2009 2339154.5 2010 2464924.75 2011 2525442.25 2012 2680091.25 2013 2800164.75 2014 2938825.5 2015 3052092.25 2016 3200498.25 2017 3330223.25 2018 3489119.75 2019 3517404.25 2020 3592397.25 2021 3677176.25 2022 3748812