| Year | Value | | 2022 | 1,404,241 | | 2021 | 1,403,777 | | 2020 | 1,394,958 | | 2019 | 1,380,351 | | 2018 | 1,352,353 | | 2017 | 1,324,083 | | 2016 | 1,305,698 | | 2015 | 1,289,396 | | 2014 | 1,274,952 | | 2013 | 1,260,931 | | 2012 | 1,246,803 | | 2011 | 1,232,851 | | 2010 | 1,220,061 | | 2009 | 1,209,576 | | 2008 | 1,201,075 | | 2007 | 1,196,081 | | 2006 | 1,194,053 | | 2005 | 1,191,615 | | 2004 | 1,187,530 | | 2003 | 1,181,549 | | 2002 | 1,173,361 | | 2001 | 1,161,628 | | 2000 | 1,144,871 | | 1999 | 1,122,675 | | 1998 | 1,096,305 | | 1997 | 1,067,791 | | 1996 | 1,038,867 | | 1995 | 1,011,328 | | 1994 | 985,597 | | 1993 | 961,166 | | 1992 | 938,296 | | 1991 | 917,537 | | 1990 | 897,261 | | 1989 | 876,263 | | 1988 | 855,590 | | 1987 | 834,956 | | 1986 | 813,985 | | 1985 | 791,960 | | 1984 | 768,784 | | 1983 | 744,818 | | 1982 | 720,872 | | 1981 | 697,484 | | 1980 | 674,013 | | 1979 | 651,545 | | 1978 | 630,295 | | 1977 | 608,877 | | 1976 | 587,344 | | 1975 | 565,271 | | 1974 | 542,180 | | 1973 | 519,112 | | 1972 | 497,875 | | 1971 | 479,212 | | 1970 | 463,015 | | 1969 | 448,904 | | 1968 | 437,076 | | 1967 | 427,375 | | 1966 | 418,586 | | 1965 | 409,920 | | 1964 | 401,292 | | 1963 | 392,740 | | 1962 | 383,934 | | 1961 | 374,422 | | 1960 | 364,343 |
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