Year | Value | 2022 | 166,301 | 2021 | 166,054 | 2020 | 165,650 | 2019 | 165,170 | 2018 | 164,513 | 2017 | 163,439 | 2016 | 161,783 | 2015 | 159,420 | 2014 | 156,465 | 2013 | 152,995 | 2012 | 149,035 | 2011 | 144,848 | 2010 | 140,881 | 2009 | 137,317 | 2008 | 134,314 | 2007 | 132,185 | 2006 | 131,107 | 2005 | 131,002 | 2004 | 131,666 | 2003 | 132,593 | 2002 | 133,017 | 2001 | 132,676 | 2000 | 132,052 | 1999 | 131,637 | 1998 | 131,726 | 1997 | 132,446 | 1996 | 133,544 | 1995 | 134,147 | 1994 | 132,693 | 1993 | 128,992 | 1992 | 124,089 | 1991 | 118,412 | 1990 | 112,260 | 1989 | 105,940 | 1988 | 100,852 | 1987 | 97,285 | 1986 | 94,483 | 1985 | 92,549 | 1984 | 91,163 | 1983 | 90,373 | 1982 | 90,153 | 1981 | 90,102 | 1980 | 89,787 | 1979 | 88,951 | 1978 | 87,704 | 1977 | 85,853 | 1976 | 83,447 | 1975 | 80,801 | 1974 | 78,051 | 1973 | 75,349 | 1972 | 72,720 | 1971 | 70,183 | 1970 | 67,764 | 1969 | 65,453 | 1968 | 63,247 | 1967 | 61,158 | 1966 | 59,165 | 1965 | 57,275 | 1964 | 55,493 | 1963 | 53,834 | 1962 | 52,337 | 1961 | 51,025 | 1960 | 49,890 |
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