| Year | Value | | 2022 | 1,516,497 | | 2021 | 1,509,350 | | 2020 | 1,502,555 | | 2019 | 1,501,063 | | 2018 | 1,503,132 | | 2017 | 1,504,047 | | 2016 | 1,502,320 | | 2015 | 1,499,856 | | 2014 | 1,500,043 | | 2013 | 1,505,446 | | 2012 | 1,517,154 | | 2011 | 1,535,694 | | 2010 | 1,562,345 | | 2009 | 1,596,000 | | 2008 | 1,632,397 | | 2007 | 1,666,643 | | 2006 | 1,698,165 | | 2005 | 1,726,966 | | 2004 | 1,749,931 | | 2003 | 1,767,937 | | 2002 | 1,784,462 | | 2001 | 1,800,492 | | 2000 | 1,814,809 | | 1999 | 1,825,666 | | 1998 | 1,831,489 | | 1997 | 1,828,127 | | 1996 | 1,813,061 | | 1995 | 1,787,766 | | 1994 | 1,754,340 | | 1993 | 1,716,330 | | 1992 | 1,678,318 | | 1991 | 1,642,485 | | 1990 | 1,607,827 | | 1989 | 1,574,889 | | 1988 | 1,542,928 | | 1987 | 1,509,964 | | 1986 | 1,476,207 | | 1985 | 1,441,652 | | 1984 | 1,407,008 | | 1983 | 1,373,318 | | 1982 | 1,340,801 | | 1981 | 1,309,879 | | 1980 | 1,280,036 | | 1979 | 1,249,577 | | 1978 | 1,218,207 | | 1977 | 1,188,467 | | 1976 | 1,161,710 | | 1975 | 1,136,912 | | 1974 | 1,113,591 | | 1973 | 1,092,690 | | 1972 | 1,072,436 | | 1971 | 1,050,391 | | 1970 | 1,027,904 | | 1969 | 1,005,873 | | 1968 | 983,700 | | 1967 | 961,707 | | 1966 | 940,687 | | 1965 | 919,866 | | 1964 | 898,555 | | 1963 | 878,008 | | 1962 | 859,179 | | 1961 | 841,903 | | 1960 | 826,722 |
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