| Year | Value | | 2022 | 8,516,043 | | 2021 | 8,297,057 | | 2020 | 8,076,926 | | 2019 | 7,860,618 | | 2018 | 7,649,754 | | 2017 | 7,443,229 | | 2016 | 7,242,618 | | 2015 | 7,048,291 | | 2014 | 6,859,154 | | 2013 | 6,676,682 | | 2012 | 6,500,266 | | 2011 | 6,327,295 | | 2010 | 6,159,215 | | 2009 | 5,996,251 | | 2008 | 5,839,565 | | 2007 | 5,689,190 | | 2006 | 5,542,900 | | 2005 | 5,401,974 | | 2004 | 5,267,939 | | 2003 | 5,139,658 | | 2002 | 5,016,669 | | 2001 | 4,899,113 | | 2000 | 4,786,669 | | 1999 | 4,678,701 | | 1998 | 4,575,803 | | 1997 | 4,477,010 | | 1996 | 4,378,872 | | 1995 | 4,278,552 | | 1994 | 4,174,733 | | 1993 | 4,067,706 | | 1992 | 3,959,573 | | 1991 | 3,852,352 | | 1990 | 3,746,257 | | 1989 | 3,642,307 | | 1988 | 3,541,274 | | 1987 | 3,442,241 | | 1986 | 3,345,548 | | 1985 | 3,253,685 | | 1984 | 3,168,251 | | 1983 | 3,087,738 | | 1982 | 3,010,490 | | 1981 | 2,937,020 | | 1980 | 2,868,004 | | 1979 | 2,803,688 | | 1978 | 2,743,704 | | 1977 | 2,686,849 | | 1976 | 2,627,390 | | 1975 | 2,562,544 | | 1974 | 2,494,233 | | 1973 | 2,422,854 | | 1972 | 2,350,963 | | 1971 | 2,280,602 | | 1970 | 2,211,972 | | 1969 | 2,145,046 | | 1968 | 2,079,797 | | 1967 | 2,016,259 | | 1966 | 1,954,818 | | 1965 | 1,895,958 | | 1964 | 1,839,822 | | 1963 | 1,786,083 | | 1962 | 1,733,990 | | 1961 | 1,683,168 | | 1960 | 1,633,688 |
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