Year | Value | 2022 | 400,313 | 2021 | 397,433 | 2020 | 390,520 | 2019 | 383,193 | 2018 | 375,196 | 2017 | 366,387 | 2016 | 358,979 | 2015 | 353,063 | 2014 | 347,514 | 2013 | 342,183 | 2012 | 337,611 | 2011 | 336,248 | 2010 | 337,498 | 2009 | 338,964 | 2008 | 339,285 | 2007 | 338,948 | 2006 | 338,262 | 2005 | 338,458 | 2004 | 341,525 | 2003 | 350,724 | 2002 | 366,362 | 2001 | 384,932 | 2000 | 403,597 | 1999 | 419,273 | 1998 | 429,379 | 1997 | 433,838 | 1996 | 433,280 | 1995 | 429,381 | 1994 | 424,311 | 1993 | 416,004 | 1992 | 403,563 | 1991 | 390,405 | 1990 | 378,106 | 1989 | 367,749 | 1988 | 360,329 | 1987 | 351,843 | 1986 | 336,788 | 1985 | 314,388 | 1984 | 285,963 | 1983 | 257,387 | 1982 | 237,741 | 1981 | 234,641 | 1980 | 248,786 | 1979 | 275,351 | 1978 | 308,448 | 1977 | 340,139 | 1976 | 363,141 | 1975 | 374,574 | 1974 | 375,240 | 1973 | 369,196 | 1972 | 362,261 | 1971 | 358,854 | 1970 | 361,089 | 1969 | 367,589 | 1968 | 375,156 | 1967 | 381,500 | 1966 | 384,454 | 1965 | 383,024 | 1964 | 377,388 | 1963 | 367,412 | 1962 | 352,264 | 1961 | 332,691 | 1960 | 310,666 |
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