| Year | Value | | 2022 | 7,005,320 | | 2021 | 6,846,006 | | 2020 | 6,687,118 | | 2019 | 6,527,547 | | 2018 | 6,370,216 | | 2017 | 6,216,323 | | 2016 | 6,064,194 | | 2015 | 5,914,257 | | 2014 | 5,769,149 | | 2013 | 5,630,110 | | 2012 | 5,495,816 | | 2011 | 5,364,456 | | 2010 | 5,235,369 | | 2009 | 5,109,750 | | 2008 | 4,987,979 | | 2007 | 4,870,553 | | 2006 | 4,760,253 | | 2005 | 4,660,236 | | 2004 | 4,565,463 | | 2003 | 4,468,708 | | 2002 | 4,371,013 | | 2001 | 4,295,144 | | 2000 | 4,227,368 | | 1999 | 4,141,344 | | 1998 | 4,048,557 | | 1997 | 3,966,809 | | 1996 | 3,881,753 | | 1995 | 3,777,340 | | 1994 | 3,676,611 | | 1993 | 3,570,631 | | 1992 | 3,465,959 | | 1991 | 3,359,906 | | 1990 | 3,231,211 | | 1989 | 3,124,090 | | 1988 | 3,046,584 | | 1987 | 2,970,401 | | 1986 | 2,897,280 | | 1985 | 2,828,266 | | 1984 | 2,763,482 | | 1983 | 2,702,739 | | 1982 | 2,645,404 | | 1981 | 2,591,484 | | 1980 | 2,540,986 | | 1979 | 2,493,506 | | 1978 | 2,449,061 | | 1977 | 2,407,218 | | 1976 | 2,366,954 | | 1975 | 2,327,451 | | 1974 | 2,288,254 | | 1973 | 2,249,090 | | 1972 | 2,209,724 | | 1971 | 2,170,224 | | 1970 | 2,130,554 | | 1969 | 2,090,740 | | 1968 | 2,051,032 | | 1967 | 2,012,180 | | 1966 | 1,974,671 | | 1965 | 1,938,210 | | 1964 | 1,902,710 | | 1963 | 1,868,136 | | 1962 | 1,834,494 | | 1961 | 1,801,811 | | 1960 | 1,769,969 |
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