| Year | Value | | 2022 | 4,213,328 | | 2021 | 4,205,237 | | 2020 | 4,198,551 | | 2019 | 4,202,994 | | 2018 | 4,216,676 | | 2017 | 4,224,906 | | 2016 | 4,225,070 | | 2015 | 4,216,509 | | 2014 | 4,179,338 | | 2013 | 4,102,707 | | 2012 | 4,004,188 | | 2011 | 3,893,492 | | 2010 | 3,779,771 | | 2009 | 3,676,114 | | 2008 | 3,571,179 | | 2007 | 3,461,100 | | 2006 | 3,351,448 | | 2005 | 3,238,935 | | 2004 | 3,119,482 | | 2003 | 3,000,633 | | 2002 | 2,892,982 | | 2001 | 2,798,672 | | 2000 | 2,715,617 | | 1999 | 2,643,716 | | 1998 | 2,582,803 | | 1997 | 2,527,351 | | 1996 | 2,475,429 | | 1995 | 2,427,165 | | 1994 | 2,380,146 | | 1993 | 2,333,633 | | 1992 | 2,285,492 | | 1991 | 2,234,617 | | 1990 | 2,180,407 | | 1989 | 2,121,740 | | 1988 | 2,060,999 | | 1987 | 2,002,142 | | 1986 | 1,946,913 | | 1985 | 1,894,160 | | 1984 | 1,842,678 | | 1983 | 1,790,792 | | 1982 | 1,736,412 | | 1981 | 1,678,273 | | 1980 | 1,615,755 | | 1979 | 1,556,555 | | 1978 | 1,513,076 | | 1977 | 1,484,172 | | 1976 | 1,457,154 | | 1975 | 1,421,351 | | 1974 | 1,368,955 | | 1973 | 1,293,543 | | 1972 | 1,202,995 | | 1971 | 1,118,410 | | 1970 | 1,052,192 | | 1969 | 1,006,804 | | 1968 | 982,660 | | 1967 | 976,013 | | 1966 | 980,037 | | 1965 | 987,314 | | 1964 | 995,700 | | 1963 | 1,003,371 | | 1962 | 1,006,509 | | 1961 | 1,005,261 | | 1960 | 1,001,178 |
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