| Year | Value | | 2022 | 162,901 | | 2021 | 157,516 | | 2020 | 152,306 | | 2019 | 147,109 | | 2018 | 142,085 | | 2017 | 137,245 | | 2016 | 132,517 | | 2015 | 127,872 | | 2014 | 123,331 | | 2013 | 118,871 | | 2012 | 114,490 | | 2011 | 110,231 | | 2010 | 106,103 | | 2009 | 101,794 | | 2008 | 97,121 | | 2007 | 92,112 | | 2006 | 86,691 | | 2005 | 81,065 | | 2004 | 75,759 | | 2003 | 71,051 | | 2002 | 66,983 | | 2001 | 63,697 | | 2000 | 61,113 | | 1999 | 59,095 | | 1998 | 57,701 | | 1997 | 56,726 | | 1996 | 55,881 | | 1995 | 55,124 | | 1994 | 54,413 | | 1993 | 53,710 | | 1992 | 52,969 | | 1991 | 52,183 | | 1990 | 51,350 | | 1989 | 50,423 | | 1988 | 49,322 | | 1987 | 48,055 | | 1986 | 46,832 | | 1985 | 45,826 | | 1984 | 44,989 | | 1983 | 44,350 | | 1982 | 43,795 | | 1981 | 42,980 | | 1980 | 41,730 | | 1979 | 40,104 | | 1978 | 38,072 | | 1977 | 35,830 | | 1976 | 33,901 | | 1975 | 32,607 | | 1974 | 32,008 | | 1973 | 32,052 | | 1972 | 32,446 | | 1971 | 32,740 | | 1970 | 32,645 | | 1969 | 32,203 | | 1968 | 31,477 | | 1967 | 30,504 | | 1966 | 29,546 | | 1965 | 28,755 | | 1964 | 28,068 | | 1963 | 27,427 | | 1962 | 26,887 | | 1961 | 26,442 | | 1960 | 26,084 |
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