| Year | Value | | 2022 | 208,236 | | 2021 | 207,072 | | 2020 | 205,498 | | 2019 | 203,532 | | 2018 | 201,507 | | 2017 | 199,529 | | 2016 | 197,461 | | 2015 | 195,339 | | 2014 | 193,185 | | 2013 | 190,952 | | 2012 | 188,597 | | 2011 | 186,206 | | 2010 | 183,789 | | 2009 | 181,371 | | 2008 | 178,981 | | 2007 | 176,614 | | 2006 | 174,277 | | 2005 | 171,994 | | 2004 | 169,832 | | 2003 | 167,940 | | 2002 | 165,597 | | 2001 | 163,194 | | 2000 | 160,733 | | 1999 | 158,210 | | 1998 | 155,623 | | 1997 | 152,972 | | 1996 | 150,238 | | 1995 | 147,396 | | 1994 | 145,018 | | 1993 | 143,912 | | 1992 | 143,250 | | 1991 | 142,349 | | 1990 | 141,551 | | 1989 | 140,345 | | 1988 | 138,509 | | 1987 | 136,987 | | 1986 | 135,729 | | 1985 | 134,217 | | 1984 | 132,925 | | 1983 | 132,095 | | 1982 | 131,636 | | 1981 | 131,419 | | 1980 | 131,439 | | 1979 | 140,367 | | 1978 | 150,474 | | 1977 | 160,705 | | 1976 | 171,013 | | 1975 | 181,367 | | 1974 | 191,653 | | 1973 | 201,784 | | 1972 | 211,644 | | 1971 | 212,807 | | 1970 | 205,353 | | 1969 | 197,852 | | 1968 | 190,488 | | 1967 | 183,342 | | 1966 | 176,444 | | 1965 | 169,817 | | 1964 | 163,395 | | 1963 | 157,532 | | 1962 | 151,828 | | 1961 | 146,498 | | 1960 | 141,552 |
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