Year | Value | 2022 | 11,151,246 | 2021 | 11,220,668 | 2020 | 11,470,718 | 2019 | 11,630,833 | 2018 | 11,777,310 | 2017 | 11,856,020 | 2016 | 11,827,026 | 2015 | 11,748,382 | 2014 | 11,765,844 | 2013 | 11,900,669 | 2012 | 12,081,332 | 2011 | 12,280,359 | 2010 | 12,484,285 | 2009 | 12,584,473 | 2008 | 12,586,426 | 2007 | 12,555,465 | 2006 | 12,485,592 | 2005 | 12,344,496 | 2004 | 12,171,334 | 2003 | 11,965,511 | 2002 | 11,686,112 | 2001 | 11,546,273 | 2000 | 11,278,661 | 1999 | 10,709,309 | 1998 | 10,264,993 | 1997 | 10,007,735 | 1996 | 9,630,955 | 1995 | 9,221,152 | 1994 | 8,951,483 | 1993 | 8,666,948 | 1992 | 8,305,585 | 1991 | 7,787,717 | 1990 | 7,437,557 | 1989 | 7,298,514 | 1988 | 7,063,319 | 1987 | 6,778,973 | 1986 | 6,653,163 | 1985 | 6,550,446 | 1984 | 6,371,935 | 1983 | 6,313,232 | 1982 | 6,330,364 | 1981 | 6,362,963 | 1980 | 6,509,745 | 1979 | 6,824,370 | 1978 | 6,994,401 | 1977 | 7,011,948 | 1976 | 7,027,663 | 1975 | 6,903,174 | 1974 | 6,613,269 | 1973 | 6,518,586 | 1972 | 6,550,768 | 1971 | 6,442,393 | 1970 | 6,412,765 | 1969 | 6,528,252 | 1968 | 6,414,077 | 1967 | 6,160,574 | 1966 | 6,094,081 | 1965 | 6,028,331 | 1964 | 5,885,729 | 1963 | 5,815,724 | 1962 | 5,862,863 | 1961 | 5,899,333 | 1960 | 5,896,164 |
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