Year | Value | 2022 | 1,400,939 | 2021 | 1,403,716 | 2020 | 1,406,081 | 2019 | 1,408,464 | 2018 | 1,427,234 | 2017 | 1,442,005 | 2016 | 1,463,916 | 2015 | 1,490,032 | 2014 | 1,514,707 | 2013 | 1,519,044 | 2012 | 1,506,458 | 2011 | 1,496,306 | 2010 | 1,488,814 | 2009 | 1,484,104 | 2008 | 1,479,103 | 2007 | 1,479,172 | 2006 | 1,500,261 | 2005 | 1,532,951 | 2004 | 1,565,881 | 2003 | 1,601,869 | 2002 | 1,647,451 | 2001 | 1,707,022 | 2000 | 1,782,023 | 1999 | 1,871,058 | 1998 | 1,957,487 | 1997 | 2,032,366 | 1996 | 2,098,626 | 1995 | 2,147,204 | 1994 | 2,179,841 | 1993 | 2,205,809 | 1992 | 2,229,424 | 1991 | 2,243,136 | 1990 | 2,259,642 | 1989 | 2,287,951 | 1988 | 2,303,716 | 1987 | 2,299,241 | 1986 | 2,275,671 | 1985 | 2,235,012 | 1984 | 2,178,379 | 1983 | 2,119,863 | 1982 | 2,074,392 | 1981 | 2,036,775 | 1980 | 1,996,905 | 1979 | 1,960,360 | 1978 | 1,932,492 | 1977 | 1,906,478 | 1976 | 1,882,773 | 1975 | 1,872,783 | 1974 | 1,881,307 | 1973 | 1,913,405 | 1972 | 1,960,210 | 1971 | 2,001,966 | 1970 | 1,997,686 | 1969 | 1,951,566 | 1968 | 1,897,762 | 1967 | 1,838,964 | 1966 | 1,798,131 | 1965 | 1,817,190 | 1964 | 1,880,319 | 1963 | 1,934,831 | 1962 | 1,969,418 | 1961 | 1,980,818 | 1960 | 1,972,961 |
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