Year | Value | 2022 | 234,888 | 2021 | 220,804 | 2020 | 206,909 | 2019 | 193,141 | 2018 | 180,902 | 2017 | 171,249 | 2016 | 164,335 | 2015 | 160,040 | 2014 | 158,262 | 2013 | 158,628 | 2012 | 160,459 | 2011 | 162,504 | 2010 | 164,707 | 2009 | 167,647 | 2008 | 170,616 | 2007 | 172,933 | 2006 | 175,136 | 2005 | 176,131 | 2004 | 174,893 | 2003 | 169,338 | 2002 | 161,205 | 2001 | 154,739 | 2000 | 148,155 | 1999 | 140,962 | 1998 | 138,202 | 1997 | 138,608 | 1996 | 137,150 | 1995 | 134,438 | 1994 | 130,603 | 1993 | 125,728 | 1992 | 120,608 | 1991 | 116,107 | 1990 | 112,124 | 1989 | 108,411 | 1988 | 104,953 | 1987 | 101,635 | 1986 | 98,734 | 1985 | 96,155 | 1984 | 93,692 | 1983 | 91,302 | 1982 | 89,156 | 1981 | 87,113 | 1980 | 86,675 | 1979 | 86,753 | 1978 | 84,541 | 1977 | 81,385 | 1976 | 78,832 | 1975 | 77,316 | 1974 | 76,654 | 1973 | 76,896 | 1972 | 77,585 | 1971 | 77,666 | 1970 | 76,520 | 1969 | 74,423 | 1968 | 71,496 | 1967 | 67,893 | 1966 | 64,464 | 1965 | 61,739 | 1964 | 59,617 | 1963 | 57,977 | 1962 | 56,830 | 1961 | 55,843 | 1960 | 54,817 |
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