| Year | Value | | 2022 | 1,664,779 | | 2021 | 1,659,425 | | 2020 | 1,669,286 | | 2019 | 1,682,018 | | 2018 | 1,686,292 | | 2017 | 1,690,269 | | 2016 | 1,693,011 | | 2015 | 1,691,155 | | 2014 | 1,684,210 | | 2013 | 1,672,622 | | 2012 | 1,660,188 | | 2011 | 1,647,552 | | 2010 | 1,632,678 | | 2009 | 1,612,718 | | 2008 | 1,587,676 | | 2007 | 1,560,388 | | 2006 | 1,532,071 | | 2005 | 1,503,039 | | 2004 | 1,473,970 | | 2003 | 1,444,411 | | 2002 | 1,413,807 | | 2001 | 1,381,518 | | 2000 | 1,348,745 | | 1999 | 1,316,233 | | 1998 | 1,284,892 | | 1997 | 1,256,526 | | 1996 | 1,232,246 | | 1995 | 1,211,997 | | 1994 | 1,197,631 | | 1993 | 1,186,040 | | 1992 | 1,175,342 | | 1991 | 1,164,265 | | 1990 | 1,151,216 | | 1989 | 1,137,024 | | 1988 | 1,122,299 | | 1987 | 1,109,425 | | 1986 | 1,094,551 | | 1985 | 1,077,890 | | 1984 | 1,059,251 | | 1983 | 1,037,695 | | 1982 | 1,013,742 | | 1981 | 988,279 | | 1980 | 962,244 | | 1979 | 935,425 | | 1978 | 908,568 | | 1977 | 880,809 | | 1976 | 851,690 | | 1975 | 821,427 | | 1974 | 792,052 | | 1973 | 765,624 | | 1972 | 741,115 | | 1971 | 718,713 | | 1970 | 697,301 | | 1969 | 676,012 | | 1968 | 655,683 | | 1967 | 637,469 | | 1966 | 623,213 | | 1965 | 613,220 | | 1964 | 606,537 | | 1963 | 601,739 | | 1962 | 597,275 | | 1961 | 592,214 | | 1960 | 586,269 |
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