| Year | Value | | 2022 | 2,027,036 | | 2021 | 1,979,329 | | 2020 | 1,932,832 | | 2019 | 1,888,285 | | 2018 | 1,844,411 | | 2017 | 1,801,594 | | 2016 | 1,759,769 | | 2015 | 1,717,464 | | 2014 | 1,674,488 | | 2013 | 1,630,406 | | 2012 | 1,585,478 | | 2011 | 1,539,452 | | 2010 | 1,492,911 | | 2009 | 1,446,407 | | 2008 | 1,398,884 | | 2007 | 1,350,324 | | 2006 | 1,301,061 | | 2005 | 1,250,977 | | 2004 | 1,201,583 | | 2003 | 1,154,040 | | 2002 | 1,108,379 | | 2001 | 1,065,456 | | 2000 | 1,026,311 | | 1999 | 992,549 | | 1998 | 964,851 | | 1997 | 942,249 | | 1996 | 923,648 | | 1995 | 906,600 | | 1994 | 888,945 | | 1993 | 872,051 | | 1992 | 856,235 | | 1991 | 840,897 | | 1990 | 827,140 | | 1989 | 814,025 | | 1988 | 800,060 | | 1987 | 786,097 | | 1986 | 772,030 | | 1985 | 757,155 | | 1984 | 741,356 | | 1983 | 724,587 | | 1982 | 707,214 | | 1981 | 689,327 | | 1980 | 671,317 | | 1979 | 653,639 | | 1978 | 636,852 | | 1977 | 621,074 | | 1976 | 606,217 | | 1975 | 592,191 | | 1974 | 578,728 | | 1973 | 565,972 | | 1972 | 553,998 | | 1971 | 542,777 | | 1970 | 532,069 | | 1969 | 521,702 | | 1968 | 511,505 | | 1967 | 501,656 | | 1966 | 492,550 | | 1965 | 484,143 | | 1964 | 476,480 | | 1963 | 469,225 | | 1962 | 462,051 | | 1961 | 455,140 | | 1960 | 448,484 |
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