| Year | Value | | 2022 | 4,293,526 | | 2021 | 4,201,801 | | 2020 | 4,109,203 | | 2019 | 4,016,374 | | 2018 | 3,924,338 | | 2017 | 3,833,302 | | 2016 | 3,742,430 | | 2015 | 3,653,843 | | 2014 | 3,567,901 | | 2013 | 3,481,154 | | 2012 | 3,394,265 | | 2011 | 3,307,516 | | 2010 | 3,221,070 | | 2009 | 3,134,095 | | 2008 | 3,051,126 | | 2007 | 2,976,883 | | 2006 | 2,914,008 | | 2005 | 2,852,644 | | 2004 | 2,779,282 | | 2003 | 2,689,447 | | 2002 | 2,585,175 | | 2001 | 2,444,289 | | 2000 | 2,308,186 | | 1999 | 2,252,803 | | 1998 | 2,238,771 | | 1997 | 2,216,398 | | 1996 | 2,188,253 | | 1995 | 2,177,142 | | 1994 | 2,172,921 | | 1993 | 2,163,908 | | 1992 | 2,167,635 | | 1991 | 2,207,063 | | 1990 | 2,181,394 | | 1989 | 2,098,595 | | 1988 | 2,047,626 | | 1987 | 1,993,864 | | 1986 | 1,941,732 | | 1985 | 1,895,275 | | 1984 | 1,854,001 | | 1983 | 1,814,012 | | 1982 | 1,775,920 | | 1981 | 1,740,052 | | 1980 | 1,705,403 | | 1979 | 1,671,838 | | 1978 | 1,639,537 | | 1977 | 1,608,171 | | 1976 | 1,578,647 | | 1975 | 1,550,326 | | 1974 | 1,521,945 | | 1973 | 1,493,840 | | 1972 | 1,466,114 | | 1971 | 1,439,080 | | 1970 | 1,412,235 | | 1969 | 1,385,391 | | 1968 | 1,359,061 | | 1967 | 1,333,014 | | 1966 | 1,307,576 | | 1965 | 1,282,840 | | 1964 | 1,258,723 | | 1963 | 1,235,593 | | 1962 | 1,213,530 | | 1961 | 1,192,476 | | 1960 | 1,172,508 |
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