| Year | Value | | 2022 | 9,457,778 | | 2021 | 9,126,380 | | 2020 | 8,790,169 | | 2019 | 8,414,794 | | 2018 | 8,019,633 | | 2017 | 7,662,698 | | 2016 | 7,349,946 | | 2015 | 7,067,763 | | 2014 | 6,825,541 | | 2013 | 6,614,789 | | 2012 | 6,401,974 | | 2011 | 6,185,526 | | 2010 | 5,983,105 | | 2009 | 5,797,958 | | 2008 | 5,634,409 | | 2007 | 5,490,159 | | 2006 | 5,353,109 | | 2005 | 5,217,914 | | 2004 | 5,088,768 | | 2003 | 4,963,445 | | 2002 | 4,835,190 | | 2001 | 4,713,479 | | 2000 | 4,605,336 | | 1999 | 4,499,769 | | 1998 | 4,396,753 | | 1997 | 4,303,513 | | 1996 | 4,215,227 | | 1995 | 4,127,594 | | 1994 | 4,046,409 | | 1993 | 3,962,402 | | 1992 | 3,866,516 | | 1991 | 3,777,790 | | 1990 | 3,700,789 | | 1989 | 3,624,918 | | 1988 | 3,551,122 | | 1987 | 3,477,964 | | 1986 | 3,402,395 | | 1985 | 3,326,286 | | 1984 | 3,248,135 | | 1983 | 3,172,063 | | 1982 | 3,097,506 | | 1981 | 3,025,014 | | 1980 | 2,958,603 | | 1979 | 2,889,021 | | 1978 | 2,812,586 | | 1977 | 2,737,953 | | 1976 | 2,668,033 | | 1975 | 2,602,759 | | 1974 | 2,539,490 | | 1973 | 2,475,940 | | 1972 | 2,415,044 | | 1971 | 2,365,286 | | 1970 | 2,316,706 | | 1969 | 2,257,933 | | 1968 | 2,197,149 | | 1967 | 2,136,933 | | 1966 | 2,079,798 | | 1965 | 2,026,618 | | 1964 | 1,975,623 | | 1963 | 1,926,211 | | 1962 | 1,878,087 | | 1961 | 1,829,994 | | 1960 | 1,782,309 |
|