| Year | Value | | 2022 | 8,611,857 | | 2021 | 8,603,434 | | 2020 | 8,606,694 | | 2019 | 8,622,020 | | 2018 | 8,654,075 | | 2017 | 8,706,551 | | 2016 | 8,765,504 | | 2015 | 8,819,432 | | 2014 | 8,868,199 | | 2013 | 8,901,777 | | 2012 | 8,912,042 | | 2011 | 8,892,783 | | 2010 | 8,840,061 | | 2009 | 8,749,984 | | 2008 | 8,627,024 | | 2007 | 8,476,440 | | 2006 | 8,307,009 | | 2005 | 8,128,169 | | 2004 | 7,946,901 | | 2003 | 7,775,955 | | 2002 | 7,619,779 | | 2001 | 7,474,290 | | 2000 | 7,343,365 | | 1999 | 7,226,730 | | 1998 | 7,115,800 | | 1997 | 7,015,903 | | 1996 | 6,938,486 | | 1995 | 6,879,379 | | 1994 | 6,834,206 | | 1993 | 6,796,146 | | 1992 | 6,747,400 | | 1991 | 6,674,660 | | 1990 | 6,573,677 | | 1989 | 6,443,986 | | 1988 | 6,291,910 | | 1987 | 6,126,590 | | 1986 | 5,954,189 | | 1985 | 5,778,380 | | 1984 | 5,602,628 | | 1983 | 5,428,198 | | 1982 | 5,257,410 | | 1981 | 5,092,405 | | 1980 | 4,931,394 | | 1979 | 4,776,149 | | 1978 | 4,612,858 | | 1977 | 4,429,445 | | 1976 | 4,234,624 | | 1975 | 4,044,937 | | 1974 | 3,869,533 | | 1973 | 3,721,116 | | 1972 | 3,611,064 | | 1971 | 3,530,208 | | 1970 | 3,457,721 | | 1969 | 3,380,654 | | 1968 | 3,301,041 | | 1967 | 3,214,846 | | 1966 | 3,122,573 | | 1965 | 3,025,850 | | 1964 | 2,928,551 | | 1963 | 2,839,979 | | 1962 | 2,764,737 | | 1961 | 2,701,777 | | 1960 | 2,650,921 |
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