Year | Value | 2022 | 12,568,575 | 2021 | 12,711,228 | 2020 | 12,855,403 | 2019 | 12,999,819 | 2018 | 13,133,487 | 2017 | 13,263,152 | 2016 | 13,400,202 | 2015 | 13,539,246 | 2014 | 13,664,265 | 2013 | 13,771,378 | 2012 | 13,869,178 | 2011 | 13,969,504 | 2010 | 14,066,764 | 2009 | 14,160,682 | 2008 | 14,248,514 | 2007 | 14,327,425 | 2006 | 14,394,621 | 2005 | 14,451,186 | 2004 | 14,498,128 | 2003 | 14,548,209 | 2002 | 14,600,994 | 2001 | 14,650,237 | 2000 | 14,699,721 | 1999 | 14,754,608 | 1998 | 14,797,194 | 1997 | 14,842,561 | 1996 | 14,890,133 | 1995 | 14,938,313 | 1994 | 14,984,368 | 1993 | 15,029,516 | 1992 | 15,064,997 | 1991 | 15,090,873 | 1990 | 15,059,117 | 1989 | 15,048,116 | 1988 | 15,014,730 | 1987 | 14,978,123 | 1986 | 14,941,329 | 1985 | 14,905,983 | 1984 | 14,870,854 | 1983 | 14,838,054 | 1982 | 14,800,709 | 1981 | 14,755,276 | 1980 | 14,708,949 | 1979 | 14,667,935 | 1978 | 14,634,992 | 1977 | 14,603,066 | 1976 | 14,572,590 | 1975 | 14,542,998 | 1974 | 14,609,071 | 1973 | 14,719,207 | 1972 | 14,812,302 | 1971 | 14,894,184 | 1970 | 14,971,545 | 1969 | 15,049,558 | 1968 | 15,124,161 | 1967 | 15,423,851 | 1966 | 15,829,365 | 1965 | 16,228,319 | 1964 | 16,619,268 | 1963 | 17,010,085 | 1962 | 17,408,369 | 1961 | 17,635,152 | 1960 | 17,782,952 |
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