Year | Value | 2022 | 12,385,211 | 2021 | 12,330,672 | 2020 | 12,313,193 | 2019 | 12,241,899 | 2018 | 12,300,840 | 2017 | 12,412,599 | 2016 | 12,568,358 | 2015 | 12,722,669 | 2014 | 12,819,548 | 2013 | 12,801,727 | 2012 | 12,672,356 | 2011 | 12,461,437 | 2010 | 12,253,658 | 2009 | 12,097,823 | 2008 | 12,008,264 | 2007 | 11,948,987 | 2006 | 11,901,394 | 2005 | 11,842,348 | 2004 | 11,759,253 | 2003 | 11,634,692 | 2002 | 11,471,343 | 2001 | 11,227,859 | 2000 | 10,930,043 | 1999 | 10,652,102 | 1998 | 10,441,500 | 1997 | 10,315,852 | 1996 | 10,330,950 | 1995 | 10,493,263 | 1994 | 10,683,875 | 1993 | 10,847,625 | 1992 | 10,953,807 | 1991 | 10,968,792 | 1990 | 10,963,447 | 1989 | 11,047,115 | 1988 | 11,229,879 | 1987 | 11,474,020 | 1986 | 11,731,051 | 1985 | 11,949,007 | 1984 | 12,062,318 | 1983 | 12,089,031 | 1982 | 12,085,178 | 1981 | 12,015,874 | 1980 | 11,872,108 | 1979 | 11,711,107 | 1978 | 11,521,680 | 1977 | 11,275,698 | 1976 | 11,171,645 | 1975 | 10,899,804 | 1974 | 10,316,422 | 1973 | 9,869,770 | 1972 | 9,573,395 | 1971 | 9,103,567 | 1970 | 8,561,711 | 1969 | 8,237,098 | 1968 | 7,968,416 | 1967 | 7,703,835 | 1966 | 7,349,698 | 1965 | 7,090,174 | 1964 | 6,931,810 | 1963 | 6,642,030 | 1962 | 6,308,496 | 1961 | 6,169,527 | 1960 | 6,070,236 |
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