Year | Value | 2022 | 17,381,013 | 2021 | 17,014,907 | 2020 | 16,554,577 | 2019 | 16,120,934 | 2018 | 15,737,518 | 2017 | 15,394,212 | 2016 | 15,064,774 | 2015 | 14,747,751 | 2014 | 14,433,597 | 2013 | 14,087,976 | 2012 | 13,707,043 | 2011 | 13,339,932 | 2010 | 12,984,850 | 2009 | 12,638,835 | 2008 | 12,312,211 | 2007 | 12,012,607 | 2006 | 11,730,587 | 2005 | 11,440,162 | 2004 | 11,138,375 | 2003 | 10,811,643 | 2002 | 10,460,518 | 2001 | 10,118,920 | 2000 | 9,766,932 | 1999 | 9,401,228 | 1998 | 9,079,731 | 1997 | 8,823,934 | 1996 | 8,655,568 | 1995 | 8,589,663 | 1994 | 8,575,574 | 1993 | 8,601,193 | 1992 | 8,654,802 | 1991 | 8,626,914 | 1990 | 8,498,414 | 1989 | 8,249,909 | 1988 | 7,925,046 | 1987 | 7,604,046 | 1986 | 7,366,904 | 1985 | 7,248,518 | 1984 | 7,235,860 | 1983 | 7,284,312 | 1982 | 7,318,583 | 1981 | 7,321,217 | 1980 | 7,283,940 | 1979 | 7,195,115 | 1978 | 7,071,958 | 1977 | 6,919,782 | 1976 | 6,733,381 | 1975 | 6,507,445 | 1974 | 6,277,320 | 1973 | 6,057,724 | 1972 | 5,817,334 | 1971 | 5,587,359 | 1970 | 5,434,658 | 1969 | 5,384,909 | 1968 | 5,375,677 | 1967 | 5,415,713 | 1966 | 5,479,597 | 1965 | 5,500,111 | 1964 | 5,439,111 | 1963 | 5,314,966 | 1962 | 5,179,597 | 1961 | 5,048,664 | 1960 | 4,911,275 |
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