| Year | Value | | 2024 | 7,252,565 | | 2023 | 7,074,605 | | 2022 | 6,896,459 | | 2021 | 6,720,675 | | 2020 | 6,546,526 | | 2019 | 6,372,298 | | 2018 | 6,197,560 | | 2017 | 6,022,608 | | 2016 | 5,848,391 | | 2015 | 5,676,385 | | 2014 | 5,507,544 | | 2013 | 5,343,394 | | 2012 | 5,184,260 | | 2011 | 5,028,977 | | 2010 | 4,877,876 | | 2009 | 4,730,891 | | 2008 | 4,587,507 | | 2007 | 4,447,216 | | 2006 | 4,313,689 | | 2005 | 4,179,151 | | 2004 | 4,044,950 | | 2003 | 3,919,530 | | 2002 | 3,798,523 | | 2001 | 3,681,640 | | 2000 | 3,567,832 | | 1999 | 3,456,727 | | 1998 | 3,348,412 | | 1997 | 3,243,554 | | 1996 | 3,145,946 | | 1995 | 3,061,771 | | 1994 | 2,995,311 | | 1993 | 2,882,269 | | 1992 | 2,753,956 | | 1991 | 2,667,883 | | 1990 | 2,584,695 | | 1989 | 2,504,483 | | 1988 | 2,427,113 | | 1987 | 2,352,526 | | 1986 | 2,280,915 | | 1985 | 2,212,187 | | 1984 | 2,146,091 | | 1983 | 2,082,564 | | 1982 | 2,021,254 | | 1981 | 1,961,925 | | 1980 | 1,905,156 | | 1979 | 1,851,524 | | 1978 | 1,801,140 | | 1977 | 1,753,305 | | 1976 | 1,707,453 | | 1975 | 1,663,597 |
|