| Year | Value | | 2022 | 5,316,219 | | 2021 | 5,311,017 | | 2020 | 5,305,178 | | 2019 | 5,302,012 | | 2018 | 5,308,658 | | 2017 | 5,320,403 | | 2016 | 5,326,926 | | 2015 | 5,328,144 | | 2014 | 5,316,101 | | 2013 | 5,280,409 | | 2012 | 5,226,986 | | 2011 | 5,163,607 | | 2010 | 5,092,517 | | 2009 | 5,036,559 | | 2008 | 5,008,295 | | 2007 | 4,990,172 | | 2006 | 4,970,571 | | 2005 | 4,943,690 | | 2004 | 4,914,898 | | 2003 | 4,893,524 | | 2002 | 4,871,254 | | 2001 | 4,844,360 | | 2000 | 4,820,701 | | 1999 | 4,787,407 | | 1998 | 4,746,374 | | 1997 | 4,708,913 | | 1996 | 4,664,995 | | 1995 | 4,605,019 | | 1994 | 4,527,681 | | 1993 | 4,437,955 | | 1992 | 4,334,012 | | 1991 | 4,217,896 | | 1990 | 4,098,796 | | 1989 | 3,987,419 | | 1988 | 3,889,433 | | 1987 | 3,800,719 | | 1986 | 3,716,495 | | 1985 | 3,629,424 | | 1984 | 3,538,610 | | 1983 | 3,445,299 | | 1982 | 3,349,223 | | 1981 | 3,249,579 | | 1980 | 3,140,189 | | 1979 | 3,019,148 | | 1978 | 2,896,034 | | 1977 | 2,778,147 | | 1976 | 2,667,654 | | 1975 | 2,562,120 | | 1974 | 2,459,458 | | 1973 | 2,365,464 | | 1972 | 2,278,711 | | 1971 | 2,194,579 | | 1970 | 2,115,673 | | 1969 | 2,040,476 | | 1968 | 1,965,761 | | 1967 | 1,898,628 | | 1966 | 1,842,234 | | 1965 | 1,785,609 | | 1964 | 1,722,967 | | 1963 | 1,656,244 | | 1962 | 1,588,038 | | 1961 | 1,525,846 | | 1960 | 1,478,577 |
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