| Year | Value | | 2022 | 248,106 | | 2021 | 245,725 | | 2020 | 244,162 | | 2019 | 243,920 | | 2018 | 244,701 | | 2017 | 246,222 | | 2016 | 248,516 | | 2015 | 250,798 | | 2014 | 252,727 | | 2013 | 253,429 | | 2012 | 252,848 | | 2011 | 252,076 | | 2010 | 250,821 | | 2009 | 249,025 | | 2008 | 245,825 | | 2007 | 241,593 | | 2006 | 236,723 | | 2005 | 230,639 | | 2004 | 224,081 | | 2003 | 217,875 | | 2002 | 214,035 | | 2001 | 213,043 | | 2000 | 211,965 | | 1999 | 209,845 | | 1998 | 206,318 | | 1997 | 200,842 | | 1996 | 193,999 | | 1995 | 185,964 | | 1994 | 179,729 | | 1993 | 175,607 | | 1992 | 171,992 | | 1991 | 183,181 | | 1990 | 193,909 | | 1989 | 189,822 | | 1988 | 185,571 | | 1987 | 181,233 | | 1986 | 176,854 | | 1985 | 172,341 | | 1984 | 167,739 | | 1983 | 163,079 | | 1982 | 158,560 | | 1981 | 154,329 | | 1980 | 150,318 | | 1979 | 146,423 | | 1978 | 142,550 | | 1977 | 138,691 | | 1976 | 134,923 | | 1975 | 131,329 | | 1974 | 127,892 | | 1973 | 124,623 | | 1972 | 121,518 | | 1971 | 118,463 | | 1970 | 115,411 | | 1969 | 112,416 | | 1968 | 109,446 | | 1967 | 106,432 | | 1966 | 103,337 | | 1965 | 100,169 | | 1964 | 97,011 | | 1963 | 93,883 | | 1962 | 90,779 | | 1961 | 87,753 | | 1960 | 84,846 |
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