Year | Value | 2022 | 346,396 | 2021 | 343,031 | 2020 | 344,029 | 2019 | 335,537 | 2018 | 325,482 | 2017 | 309,333 | 2016 | 289,811 | 2015 | 276,182 | 2014 | 264,280 | 2013 | 248,640 | 2012 | 235,181 | 2011 | 224,984 | 2010 | 216,507 | 2009 | 211,644 | 2008 | 210,540 | 2007 | 212,409 | 2006 | 217,405 | 2005 | 224,209 | 2004 | 230,466 | 2003 | 235,143 | 2002 | 238,607 | 2001 | 241,102 | 2000 | 242,940 | 1999 | 245,240 | 1998 | 249,049 | 1997 | 253,089 | 1996 | 256,083 | 1995 | 255,491 | 1994 | 247,876 | 1993 | 227,863 | 1992 | 199,204 | 1991 | 171,526 | 1990 | 151,986 | 1989 | 149,413 | 1988 | 166,428 | 1987 | 193,290 | 1986 | 219,762 | 1985 | 240,830 | 1984 | 250,961 | 1983 | 253,021 | 1982 | 252,852 | 1981 | 252,145 | 1980 | 250,413 | 1979 | 246,817 | 1978 | 242,988 | 1977 | 239,922 | 1976 | 236,386 | 1975 | 234,102 | 1974 | 232,256 | 1973 | 228,387 | 1972 | 223,314 | 1971 | 217,840 | 1970 | 213,472 | 1969 | 208,857 | 1968 | 202,819 | 1967 | 195,574 | 1966 | 187,942 | 1965 | 180,172 | 1964 | 172,665 | 1963 | 166,540 | 1962 | 162,093 | 1961 | 158,103 | 1960 | 155,005 |
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