| Year | Value | | 2022 | 3,315,660 | | 2021 | 3,307,534 | | 2020 | 3,297,184 | | 2019 | 3,298,172 | | 2018 | 3,296,882 | | 2017 | 3,304,105 | | 2016 | 3,296,406 | | 2015 | 3,269,779 | | 2014 | 3,232,290 | | 2013 | 3,187,401 | | 2012 | 3,153,144 | | 2011 | 3,126,937 | | 2010 | 3,100,125 | | 2009 | 3,073,089 | | 2008 | 3,051,942 | | 2007 | 3,028,357 | | 2006 | 3,015,266 | | 2005 | 2,977,484 | | 2004 | 2,923,373 | | 2003 | 2,868,455 | | 2002 | 2,823,339 | | 2001 | 2,775,862 | | 2000 | 2,724,504 | | 1999 | 2,676,415 | | 1998 | 2,674,294 | | 1997 | 2,668,590 | | 1996 | 2,620,875 | | 1995 | 2,586,972 | | 1994 | 2,557,548 | | 1993 | 2,472,184 | | 1992 | 2,366,116 | | 1991 | 2,289,481 | | 1990 | 2,199,524 | | 1989 | 2,098,173 | | 1988 | 1,994,074 | | 1987 | 1,920,051 | | 1986 | 1,877,344 | | 1985 | 1,844,375 | | 1984 | 1,823,395 | | 1983 | 1,841,031 | | 1982 | 1,819,055 | | 1981 | 1,742,200 | | 1980 | 1,685,681 | | 1979 | 1,628,884 | | 1978 | 1,533,597 | | 1977 | 1,462,361 | | 1976 | 1,434,780 | | 1975 | 1,385,684 | | 1974 | 1,327,212 | | 1973 | 1,272,104 | | 1972 | 1,231,430 | | 1971 | 1,200,038 | | 1970 | 1,173,878 | | 1969 | 1,153,554 | | 1968 | 1,138,748 | | 1967 | 1,124,493 | | 1966 | 1,110,596 | | 1965 | 1,095,189 | | 1964 | 1,074,677 | | 1963 | 1,053,223 | | 1962 | 1,033,408 | | 1961 | 1,014,522 | | 1960 | 994,888 |
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