| Year | Value | | 2022 | 10,800,962 | | 2021 | 10,474,385 | | 2020 | 10,136,501 | | 2019 | 9,790,217 | | 2018 | 9,454,066 | | 2017 | 9,129,342 | | 2016 | 8,817,972 | | 2015 | 8,541,692 | | 2014 | 8,293,634 | | 2013 | 8,062,853 | | 2012 | 7,843,222 | | 2011 | 7,608,396 | | 2010 | 7,361,063 | | 2009 | 7,114,823 | | 2008 | 6,857,129 | | 2007 | 6,586,220 | | 2006 | 6,326,216 | | 2005 | 6,106,065 | | 2004 | 5,920,731 | | 2003 | 5,755,531 | | 2002 | 5,623,197 | | 2001 | 5,527,136 | | 2000 | 5,430,326 | | 1999 | 5,311,791 | | 1998 | 5,189,452 | | 1997 | 5,060,881 | | 1996 | 4,926,309 | | 1995 | 4,796,412 | | 1994 | 4,679,924 | | 1993 | 4,574,226 | | 1992 | 4,469,354 | | 1991 | 4,379,389 | | 1990 | 4,304,185 | | 1989 | 4,219,655 | | 1988 | 4,127,512 | | 1987 | 4,037,448 | | 1986 | 3,948,825 | | 1985 | 3,864,271 | | 1984 | 3,779,620 | | 1983 | 3,691,258 | | 1982 | 3,606,500 | | 1981 | 3,537,614 | | 1980 | 3,484,532 | | 1979 | 3,424,545 | | 1978 | 3,349,667 | | 1977 | 3,277,252 | | 1976 | 3,206,917 | | 1975 | 3,131,991 | | 1974 | 3,056,884 | | 1973 | 2,978,295 | | 1972 | 2,898,264 | | 1971 | 2,819,606 | | 1970 | 2,740,776 | | 1969 | 2,664,206 | | 1968 | 2,593,076 | | 1967 | 2,527,845 | | 1966 | 2,467,993 | | 1965 | 2,413,508 | | 1964 | 2,363,390 | | 1963 | 2,317,513 | | 1962 | 2,274,205 | | 1961 | 2,231,263 | | 1960 | 2,188,168 |
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