Year | Value | 2022 | 434,000 | 2021 | 510,530 | 2020 | 526,251 | 2019 | 525,852 | 2018 | 505,253 | 2017 | 469,038 | 2016 | 433,961 | 2015 | 411,904 | 2014 | 405,749 | 2013 | 413,257 | 2012 | 416,067 | 2011 | 409,014 | 2010 | 393,043 | 2009 | 370,194 | 2008 | 343,331 | 2007 | 313,721 | 2006 | 288,296 | 2005 | 268,617 | 2004 | 251,960 | 2003 | 239,052 | 2002 | 231,800 | 2001 | 228,672 | 2000 | 231,384 | 1999 | 237,646 | 1998 | 243,469 | 1997 | 257,064 | 1996 | 278,866 | 1995 | 298,428 | 1994 | 309,136 | 1993 | 312,362 | 1992 | 310,730 | 1991 | 305,421 | 1990 | 298,128 | 1989 | 289,248 | 1988 | 280,724 | 1987 | 271,568 | 1986 | 260,440 | 1985 | 252,765 | 1984 | 248,328 | 1983 | 242,238 | 1982 | 235,935 | 1981 | 232,029 | 1980 | 229,271 | 1979 | 226,545 | 1978 | 225,207 | 1977 | 224,324 | 1976 | 222,688 | 1975 | 220,333 | 1974 | 216,375 | 1973 | 211,322 | 1972 | 205,623 | 1971 | 199,824 | 1970 | 195,187 | 1969 | 191,092 | 1968 | 183,911 | 1967 | 174,115 | 1966 | 165,286 | 1965 | 157,733 | 1964 | 149,550 | 1963 | 141,184 | 1962 | 134,437 | 1961 | 127,311 | 1960 | 118,817 |
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