| Year | Value | | 2022 | 782,455 | | 2021 | 777,486 | | 2020 | 772,506 | | 2019 | 767,459 | | 2018 | 762,096 | | 2017 | 756,121 | | 2016 | 749,761 | | 2015 | 743,274 | | 2014 | 736,357 | | 2013 | 728,889 | | 2012 | 721,145 | | 2011 | 713,331 | | 2010 | 705,516 | | 2009 | 697,678 | | 2008 | 689,737 | | 2007 | 681,614 | | 2006 | 673,260 | | 2005 | 663,323 | | 2004 | 649,991 | | 2003 | 634,627 | | 2002 | 619,048 | | 2001 | 603,234 | | 2000 | 587,207 | | 1999 | 570,990 | | 1998 | 557,143 | | 1997 | 546,865 | | 1996 | 537,494 | | 1995 | 527,536 | | 1994 | 521,260 | | 1993 | 520,838 | | 1992 | 545,944 | | 1991 | 567,710 | | 1990 | 558,442 | | 1989 | 544,209 | | 1988 | 529,051 | | 1987 | 514,026 | | 1986 | 499,151 | | 1985 | 484,528 | | 1984 | 470,165 | | 1983 | 456,033 | | 1982 | 442,201 | | 1981 | 428,641 | | 1980 | 415,257 | | 1979 | 402,063 | | 1978 | 389,072 | | 1977 | 376,387 | | 1976 | 364,119 | | 1975 | 352,269 | | 1974 | 340,842 | | 1973 | 329,800 | | 1972 | 319,128 | | 1971 | 308,837 | | 1970 | 298,894 | | 1969 | 289,296 | | 1968 | 280,102 | | 1967 | 271,339 | | 1966 | 262,976 | | 1965 | 255,010 | | 1964 | 247,444 | | 1963 | 240,268 | | 1962 | 233,417 | | 1961 | 227,071 | | 1960 | 221,266 |
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