Year | Value | 2022 | 24,774,815 | 2021 | 24,259,475 | 2020 | 23,646,272 | 2019 | 22,854,063 | 2018 | 21,837,819 | 2017 | 20,680,833 | 2016 | 19,562,294 | 2015 | 18,501,745 | 2014 | 17,507,035 | 2013 | 16,753,089 | 2012 | 16,234,862 | 2011 | 15,766,974 | 2010 | 15,345,294 | 2009 | 14,976,912 | 2008 | 14,655,777 | 2007 | 14,368,533 | 2006 | 14,085,369 | 2005 | 13,783,461 | 2004 | 13,465,933 | 2003 | 13,132,529 | 2002 | 12,788,232 | 2001 | 12,461,629 | 2000 | 12,168,575 | 1999 | 11,892,730 | 1998 | 11,626,448 | 1997 | 11,372,790 | 1996 | 11,121,048 | 1995 | 10,864,073 | 1994 | 10,602,183 | 1993 | 10,333,983 | 1992 | 10,063,831 | 1991 | 9,805,663 | 1990 | 9,565,384 | 1989 | 9,338,999 | 1988 | 9,126,332 | 1987 | 8,926,481 | 1986 | 8,732,131 | 1985 | 8,539,632 | 1984 | 8,349,794 | 1983 | 8,160,982 | 1982 | 7,975,323 | 1981 | 7,803,714 | 1980 | 7,645,716 | 1979 | 7,494,139 | 1978 | 7,351,979 | 1977 | 7,213,202 | 1976 | 7,059,647 | 1975 | 6,883,131 | 1974 | 6,690,300 | 1973 | 6,481,105 | 1972 | 6,264,222 | 1971 | 6,087,299 | 1970 | 5,946,185 | 1969 | 5,814,805 | 1968 | 5,712,676 | 1967 | 5,631,603 | 1966 | 5,534,156 | 1965 | 5,392,969 | 1964 | 5,206,093 | 1963 | 4,971,746 | 1962 | 4,713,482 | 1961 | 4,481,472 | 1960 | 4,311,177 |
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