| Year | Value | | 2022 | 2,592,377 | | 2021 | 2,534,094 | | 2020 | 2,461,634 | | 2019 | 2,372,102 | | 2018 | 2,276,249 | | 2017 | 2,178,943 | | 2016 | 2,080,013 | | 2015 | 1,985,228 | | 2014 | 1,896,310 | | 2013 | 1,812,206 | | 2012 | 1,728,293 | | 2011 | 1,638,995 | | 2010 | 1,543,488 | | 2009 | 1,446,153 | | 2008 | 1,352,940 | | 2007 | 1,271,089 | | 2006 | 1,215,157 | | 2005 | 1,194,731 | | 2004 | 1,198,166 | | 2003 | 1,200,823 | | 2002 | 1,193,424 | | 2001 | 1,169,934 | | 2000 | 1,122,294 | | 1999 | 1,063,376 | | 1998 | 1,017,738 | | 1997 | 983,048 | | 1996 | 941,838 | | 1995 | 894,714 | | 1994 | 848,988 | | 1993 | 806,910 | | 1992 | 769,064 | | 1991 | 734,207 | | 1990 | 699,678 | | 1989 | 664,934 | | 1988 | 629,582 | | 1987 | 594,125 | | 1986 | 561,106 | | 1985 | 531,955 | | 1984 | 506,411 | | 1983 | 484,602 | | 1982 | 466,105 | | 1981 | 449,219 | | 1980 | 433,201 | | 1979 | 418,557 | | 1978 | 405,348 | | 1977 | 393,232 | | 1976 | 382,436 | | 1975 | 373,057 | | 1974 | 364,878 | | 1973 | 357,769 | | 1972 | 351,204 | | 1971 | 344,017 | | 1970 | 335,693 | | 1969 | 326,497 | | 1968 | 316,345 | | 1967 | 305,544 | | 1966 | 295,323 | | 1965 | 286,436 | | 1964 | 278,752 | | 1963 | 272,368 | | 1962 | 266,658 | | 1961 | 259,915 | | 1960 | 251,592 |
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