Year Number 1972 33247.421875 1973 34345.2890625 1974 35104.359375 1975 36744.1875 1976 38315.79296875 1977 39297.609375 1978 40280.1328125 1979 41219.9453125 1980 42446.91015625 1981 42324.453125 1982 43149.97265625 1983 44137.0234375 1984 44898.88671875 1985 45716.0078125 1986 47806.265625 1987 48411.37890625 1988 48795.9921875 1989 50118.0390625 1990 52965.01171875 1991 54176.171875 1992 55902.78515625 1993 57276.98046875 1994 60549.51953125 1995 62855.5546875 1996 64030.64453125 1997 66928.78125 1998 66836.59375 1999 68103.5859375 2000 71327.4453125 2001 73659.71875 2002 75595.6640625 2003 76620.625 2004 80939.3046875 2005 81867.7421875 2006 83591.609375 2007 86195.8984375 2008 91085.1171875 2009 94352.0234375 2010 97700.7578125 2011 95474.90625 2012 97668.734375 2013 99700.3515625 2014 100363.9921875 2015 102546.96875 2016 106110.6484375 2017 108895.75 2018 108605.3984375 2019 112018.109375 2020 114721.125 2021 113038.5078125 2022 115430.8828125