| Year | Value | | 2022 | 3,888,388 | | 2021 | 3,884,461 | | 2020 | 3,874,635 | | 2019 | 3,858,622 | | 2018 | 3,838,884 | | 2017 | 3,810,518 | | 2016 | 3,773,234 | | 2015 | 3,731,891 | | 2014 | 3,683,536 | | 2013 | 3,629,447 | | 2012 | 3,564,323 | | 2011 | 3,474,891 | | 2010 | 3,363,334 | | 2009 | 3,238,260 | | 2008 | 3,099,521 | | 2007 | 2,955,431 | | 2006 | 2,832,137 | | 2005 | 2,745,868 | | 2004 | 2,694,970 | | 2003 | 2,671,145 | | 2002 | 2,666,471 | | 2001 | 2,634,311 | | 2000 | 2,595,111 | | 1999 | 2,581,986 | | 1998 | 2,556,167 | | 1997 | 2,520,562 | | 1996 | 2,497,206 | | 1995 | 2,443,493 | | 1994 | 2,356,912 | | 1993 | 2,257,207 | | 1992 | 2,143,470 | | 1991 | 2,027,979 | | 1990 | 1,923,492 | | 1989 | 1,829,838 | | 1988 | 1,713,131 | | 1987 | 1,567,626 | | 1986 | 1,436,483 | | 1985 | 1,317,980 | | 1984 | 1,182,914 | | 1983 | 1,087,089 | | 1982 | 1,041,263 | | 1981 | 1,011,034 | | 1980 | 989,298 | | 1979 | 980,889 | | 1978 | 977,659 | | 1977 | 972,703 | | 1976 | 974,567 | | 1975 | 984,171 | | 1974 | 1,002,469 | | 1973 | 1,028,444 | | 1972 | 1,055,000 | | 1971 | 1,070,124 | | 1970 | 1,070,085 | | 1969 | 1,059,438 | | 1968 | 1,036,469 | | 1967 | 1,004,166 | | 1966 | 974,123 | | 1965 | 954,297 | | 1964 | 942,217 | | 1963 | 937,215 | | 1962 | 937,350 | | 1961 | 934,350 | | 1960 | 924,550 |
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