| Year | Value | | 2022 | 3,471,122 | | 2021 | 3,483,844 | | 2020 | 3,537,280 | | 2019 | 3,638,419 | | 2018 | 3,776,712 | | 2017 | 3,923,298 | | 2016 | 4,055,044 | | 2015 | 4,149,890 | | 2014 | 4,191,510 | | 2013 | 4,185,416 | | 2012 | 4,151,171 | | 2011 | 4,109,228 | | 2010 | 4,073,782 | | 2009 | 4,052,807 | | 2008 | 4,051,790 | | 2007 | 4,061,940 | | 2006 | 4,067,329 | | 2005 | 4,061,281 | | 2004 | 4,044,540 | | 2003 | 4,019,201 | | 2002 | 3,982,153 | | 2001 | 3,934,346 | | 2000 | 3,880,755 | | 1999 | 3,811,852 | | 1998 | 3,728,104 | | 1997 | 3,636,606 | | 1996 | 3,529,228 | | 1995 | 3,405,738 | | 1994 | 3,276,775 | | 1993 | 3,142,064 | | 1992 | 3,005,377 | | 1991 | 2,890,414 | | 1990 | 2,813,886 | | 1989 | 2,773,953 | | 1988 | 2,763,484 | | 1987 | 2,774,718 | | 1986 | 2,756,334 | | 1985 | 2,729,171 | | 1984 | 2,723,411 | | 1983 | 2,702,788 | | 1982 | 2,674,587 | | 1981 | 2,657,987 | | 1980 | 2,608,580 | | 1979 | 2,538,334 | | 1978 | 2,445,865 | | 1977 | 2,315,444 | | 1976 | 2,186,663 | | 1975 | 2,076,148 | | 1974 | 1,987,841 | | 1973 | 1,880,039 | | 1972 | 1,739,046 | | 1971 | 1,606,508 | | 1970 | 1,481,803 | | 1969 | 1,340,316 | | 1968 | 1,241,557 | | 1967 | 1,195,644 | | 1966 | 1,163,398 | | 1965 | 1,139,765 | | 1964 | 1,124,352 | | 1963 | 1,115,719 | | 1962 | 1,113,270 | | 1961 | 1,117,464 | | 1960 | 1,128,158 |
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