| Year | Value | | 2022 | 1,273,772 | | 2021 | 1,280,107 | | 2020 | 1,284,810 | | 2019 | 1,288,001 | | 2018 | 1,288,951 | | 2017 | 1,287,324 | | 2016 | 1,285,337 | | 2015 | 1,283,650 | | 2014 | 1,279,982 | | 2013 | 1,271,500 | | 2012 | 1,261,318 | | 2011 | 1,344,248 | | 2010 | 1,424,862 | | 2009 | 1,409,609 | | 2008 | 1,393,162 | | 2007 | 1,375,706 | | 2006 | 1,358,762 | | 2005 | 1,338,066 | | 2004 | 1,312,746 | | 2003 | 1,287,666 | | 2002 | 1,263,279 | | 2001 | 1,239,735 | | 2000 | 1,217,201 | | 1999 | 1,199,555 | | 1998 | 1,185,818 | | 1997 | 1,170,974 | | 1996 | 1,154,502 | | 1995 | 1,136,219 | | 1994 | 1,116,696 | | 1993 | 1,095,974 | | 1992 | 1,074,224 | | 1991 | 1,051,756 | | 1990 | 1,028,612 | | 1989 | 1,004,881 | | 1988 | 980,699 | | 1987 | 956,078 | | 1986 | 930,837 | | 1985 | 904,499 | | 1984 | 880,443 | | 1983 | 888,251 | | 1982 | 889,086 | | 1981 | 888,449 | | 1980 | 886,031 | | 1979 | 881,808 | | 1978 | 876,027 | | 1977 | 869,246 | | 1976 | 861,471 | | 1975 | 852,909 | | 1974 | 844,819 | | 1973 | 843,540 | | 1972 | 879,753 | | 1971 | 920,567 | | 1970 | 960,870 | | 1969 | 999,367 | | 1968 | 1,035,780 | | 1967 | 1,070,010 | | 1966 | 1,101,348 | | 1965 | 1,127,726 | | 1964 | 1,141,206 | | 1963 | 1,116,362 | | 1962 | 1,088,595 | | 1961 | 1,061,794 | | 1960 | 1,037,091 |
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