| Year | Value | | 2022 | 4,128,883 | | 2021 | 4,104,581 | | 2020 | 4,077,902 | | 2019 | 4,054,765 | | 2018 | 4,035,399 | | 2017 | 4,014,466 | | 2016 | 3,984,728 | | 2015 | 3,941,614 | | 2014 | 3,888,674 | | 2013 | 3,829,825 | | 2012 | 3,765,060 | | 2011 | 3,699,062 | | 2010 | 3,639,044 | | 2009 | 3,582,864 | | 2008 | 3,534,416 | | 2007 | 3,486,825 | | 2006 | 3,422,014 | | 2005 | 3,340,381 | | 2004 | 3,249,018 | | 2003 | 3,147,560 | | 2002 | 3,041,749 | | 2001 | 2,954,096 | | 2000 | 2,899,375 | | 1999 | 2,873,114 | | 1998 | 2,864,583 | | 1997 | 2,868,984 | | 1996 | 2,840,762 | | 1995 | 2,801,019 | | 1994 | 2,781,203 | | 1993 | 2,745,844 | | 1992 | 2,702,475 | | 1991 | 2,670,950 | | 1990 | 2,609,294 | | 1989 | 2,515,632 | | 1988 | 2,411,013 | | 1987 | 2,296,288 | | 1986 | 2,182,431 | | 1985 | 2,082,154 | | 1984 | 1,994,890 | | 1983 | 1,884,551 | | 1982 | 1,745,439 | | 1981 | 1,620,932 | | 1980 | 1,506,636 | | 1979 | 1,377,415 | | 1978 | 1,283,387 | | 1977 | 1,227,181 | | 1976 | 1,185,318 | | 1975 | 1,154,893 | | 1974 | 1,135,043 | | 1973 | 1,123,718 | | 1972 | 1,118,936 | | 1971 | 1,119,173 | | 1970 | 1,126,722 | | 1969 | 1,143,309 | | 1968 | 1,166,943 | | 1967 | 1,191,590 | | 1966 | 1,206,117 | | 1965 | 1,205,438 | | 1964 | 1,190,575 | | 1963 | 1,160,178 | | 1962 | 1,119,215 | | 1961 | 1,082,068 | | 1960 | 1,056,024 |
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