| Year | Value | | 2022 | 1,540,853 | | 2021 | 1,525,816 | | 2020 | 1,517,871 | | 2019 | 1,516,313 | | 2018 | 1,522,604 | | 2017 | 1,531,892 | | 2016 | 1,537,659 | | 2015 | 1,542,104 | | 2014 | 1,551,831 | | 2013 | 1,565,095 | | 2012 | 1,580,848 | | 2011 | 1,601,317 | | 2010 | 1,623,647 | | 2009 | 1,640,991 | | 2008 | 1,650,426 | | 2007 | 1,654,011 | | 2006 | 1,653,848 | | 2005 | 1,649,113 | | 2004 | 1,639,422 | | 2003 | 1,630,972 | | 2002 | 1,625,013 | | 2001 | 1,616,807 | | 2000 | 1,605,892 | | 1999 | 1,590,571 | | 1998 | 1,568,475 | | 1997 | 1,539,625 | | 1996 | 1,507,301 | | 1995 | 1,475,601 | | 1994 | 1,447,684 | | 1993 | 1,424,163 | | 1992 | 1,402,345 | | 1991 | 1,381,064 | | 1990 | 1,357,616 | | 1989 | 1,332,225 | | 1988 | 1,307,766 | | 1987 | 1,284,428 | | 1986 | 1,262,171 | | 1985 | 1,236,802 | | 1984 | 1,208,511 | | 1983 | 1,179,237 | | 1982 | 1,150,650 | | 1981 | 1,122,665 | | 1980 | 1,092,631 | | 1979 | 1,063,427 | | 1978 | 1,035,850 | | 1977 | 1,007,298 | | 1976 | 980,937 | | 1975 | 956,261 | | 1974 | 929,457 | | 1973 | 901,924 | | 1972 | 873,235 | | 1971 | 841,543 | | 1970 | 807,522 | | 1969 | 772,851 | | 1968 | 732,258 | | 1967 | 685,732 | | 1966 | 640,624 | | 1965 | 599,070 | | 1964 | 563,168 | | 1963 | 540,370 | | 1962 | 527,490 | | 1961 | 518,445 | | 1960 | 511,587 |
|