Year | Value | 2022 | 171,312 | 2021 | 166,978 | 2020 | 161,461 | 2019 | 157,542 | 2018 | 153,735 | 2017 | 150,292 | 2016 | 147,916 | 2015 | 147,811 | 2014 | 149,754 | 2013 | 152,483 | 2012 | 155,388 | 2011 | 158,568 | 2010 | 161,354 | 2009 | 162,042 | 2008 | 160,219 | 2007 | 156,462 | 2006 | 150,461 | 2005 | 142,853 | 2004 | 134,873 | 2003 | 127,096 | 2002 | 120,383 | 2001 | 114,858 | 2000 | 110,055 | 1999 | 105,041 | 1998 | 99,212 | 1997 | 92,869 | 1996 | 85,430 | 1995 | 75,657 | 1994 | 64,615 | 1993 | 56,323 | 1992 | 52,430 | 1991 | 52,897 | 1990 | 59,235 | 1989 | 69,960 | 1988 | 82,054 | 1987 | 92,919 | 1986 | 99,461 | 1985 | 102,258 | 1984 | 103,461 | 1983 | 101,285 | 1982 | 95,954 | 1981 | 91,549 | 1980 | 89,563 | 1979 | 89,389 | 1978 | 90,987 | 1977 | 93,701 | 1976 | 94,998 | 1975 | 93,685 | 1974 | 90,276 | 1973 | 85,063 | 1972 | 78,549 | 1971 | 71,909 | 1970 | 66,085 | 1969 | 60,717 | 1968 | 55,313 | 1967 | 50,679 | 1966 | 47,616 | 1965 | 46,347 | 1964 | 46,991 | 1963 | 49,614 | 1962 | 53,445 | 1961 | 56,743 | 1960 | 58,230 |
|