| Year | Value | | 2022 | 1,449,314 | | 2021 | 1,472,955 | | 2020 | 1,511,807 | | 2019 | 1,567,025 | | 2018 | 1,634,958 | | 2017 | 1,696,371 | | 2016 | 1,744,547 | | 2015 | 1,786,203 | | 2014 | 1,820,466 | | 2013 | 1,849,176 | | 2012 | 1,874,452 | | 2011 | 1,897,021 | | 2010 | 1,916,559 | | 2009 | 1,930,486 | | 2008 | 1,936,978 | | 2007 | 1,935,579 | | 2006 | 1,924,895 | | 2005 | 1,907,660 | | 2004 | 1,880,181 | | 2003 | 1,839,036 | | 2002 | 1,788,750 | | 2001 | 1,731,974 | | 2000 | 1,673,132 | | 1999 | 1,615,843 | | 1998 | 1,563,573 | | 1997 | 1,516,124 | | 1996 | 1,477,453 | | 1995 | 1,443,733 | | 1994 | 1,407,491 | | 1993 | 1,370,583 | | 1992 | 1,333,096 | | 1991 | 1,296,434 | | 1990 | 1,260,861 | | 1989 | 1,226,263 | | 1988 | 1,191,831 | | 1987 | 1,156,493 | | 1986 | 1,115,756 | | 1985 | 1,069,586 | | 1984 | 1,023,354 | | 1983 | 979,203 | | 1982 | 938,458 | | 1981 | 901,627 | | 1980 | 867,905 | | 1979 | 835,686 | | 1978 | 803,772 | | 1977 | 771,821 | | 1976 | 752,149 | | 1975 | 741,794 | | 1974 | 713,907 | | 1973 | 670,098 | | 1972 | 625,651 | | 1971 | 584,554 | | 1970 | 549,893 | | 1969 | 521,767 | | 1968 | 499,021 | | 1967 | 481,180 | | 1966 | 467,600 | | 1965 | 461,690 | | 1964 | 461,637 | | 1963 | 462,286 | | 1962 | 463,868 | | 1961 | 464,770 | | 1960 | 464,536 |
|