| Year | Value | | 2022 | 4,911,677 | | 2021 | 4,888,573 | | 2020 | 4,859,349 | | 2019 | 4,855,992 | | 2018 | 4,859,701 | | 2017 | 4,874,665 | | 2016 | 4,891,543 | | 2015 | 4,912,125 | | 2014 | 4,940,387 | | 2013 | 4,976,418 | | 2012 | 5,012,623 | | 2011 | 5,041,558 | | 2010 | 5,056,705 | | 2009 | 5,061,271 | | 2008 | 5,063,844 | | 2007 | 5,062,560 | | 2006 | 5,056,828 | | 2005 | 5,051,464 | | 2004 | 5,046,015 | | 2003 | 5,038,307 | | 2002 | 5,024,837 | | 2001 | 4,999,948 | | 2000 | 4,962,453 | | 1999 | 4,924,970 | | 1998 | 4,895,289 | | 1997 | 4,869,151 | | 1996 | 4,846,075 | | 1995 | 4,826,454 | | 1994 | 4,808,539 | | 1993 | 4,795,404 | | 1992 | 4,790,654 | | 1991 | 4,796,177 | | 1990 | 4,808,705 | | 1989 | 4,820,266 | | 1988 | 4,828,377 | | 1987 | 4,833,963 | | 1986 | 4,835,231 | | 1985 | 4,830,648 | | 1984 | 4,816,916 | | 1983 | 4,797,314 | | 1982 | 4,774,026 | | 1981 | 4,743,925 | | 1980 | 4,700,239 | | 1979 | 4,644,979 | | 1978 | 4,589,701 | | 1977 | 4,534,049 | | 1976 | 4,479,637 | | 1975 | 4,347,394 | | 1974 | 4,178,807 | | 1973 | 4,114,258 | | 1972 | 4,105,556 | | 1971 | 4,104,396 | | 1970 | 4,121,322 | | 1969 | 4,164,392 | | 1968 | 4,207,433 | | 1967 | 4,230,006 | | 1966 | 4,260,881 | | 1965 | 4,295,981 | | 1964 | 4,315,540 | | 1963 | 4,315,071 | | 1962 | 4,299,412 | | 1961 | 4,270,284 | | 1960 | 4,237,624 |
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