| Year | Value | | 2022 | 6,139,294 | | 2021 | 5,990,002 | | 2020 | 5,837,929 | | 2019 | 5,681,974 | | 2018 | 5,526,222 | | 2017 | 5,362,434 | | 2016 | 5,195,984 | | 2015 | 5,035,523 | | 2014 | 4,871,386 | | 2013 | 4,707,914 | | 2012 | 4,551,256 | | 2011 | 4,381,377 | | 2010 | 4,196,435 | | 2009 | 4,009,663 | | 2008 | 3,815,547 | | 2007 | 3,621,581 | | 2006 | 3,452,543 | | 2005 | 3,319,253 | | 2004 | 3,212,733 | | 2003 | 3,123,059 | | 2002 | 3,036,228 | | 2001 | 2,941,116 | | 2000 | 2,839,905 | | 1999 | 2,734,235 | | 1998 | 2,630,217 | | 1997 | 2,537,245 | | 1996 | 2,452,856 | | 1995 | 2,374,630 | | 1994 | 2,310,131 | | 1993 | 2,256,249 | | 1992 | 2,201,646 | | 1991 | 2,130,773 | | 1990 | 2,054,592 | | 1989 | 1,987,838 | | 1988 | 1,919,130 | | 1987 | 1,850,063 | | 1986 | 1,786,322 | | 1985 | 1,727,025 | | 1984 | 1,664,504 | | 1983 | 1,598,034 | | 1982 | 1,526,856 | | 1981 | 1,444,950 | | 1980 | 1,391,419 | | 1979 | 1,372,352 | | 1978 | 1,350,753 | | 1977 | 1,339,831 | | 1976 | 1,333,847 | | 1975 | 1,318,202 | | 1974 | 1,299,559 | | 1973 | 1,279,953 | | 1972 | 1,266,166 | | 1971 | 1,258,065 | | 1970 | 1,248,498 | | 1969 | 1,234,360 | | 1968 | 1,214,946 | | 1967 | 1,186,419 | | 1966 | 1,150,849 | | 1965 | 1,114,856 | | 1964 | 1,080,392 | | 1963 | 1,049,421 | | 1962 | 1,021,617 | | 1961 | 995,828 | | 1960 | 971,361 |
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