Year | Value | 2022 | 12,376,206 | 2021 | 12,293,981 | 2020 | 12,266,759 | 2019 | 12,141,123 | 2018 | 12,037,953 | 2017 | 11,885,088 | 2016 | 11,680,380 | 2015 | 11,443,359 | 2014 | 11,245,966 | 2013 | 11,113,676 | 2012 | 11,067,867 | 2011 | 11,162,560 | 2010 | 11,383,998 | 2009 | 11,590,650 | 2008 | 11,731,460 | 2007 | 11,796,561 | 2006 | 11,781,144 | 2005 | 11,755,607 | 2004 | 11,850,609 | 2003 | 12,060,835 | 2002 | 12,299,667 | 2001 | 12,530,082 | 2000 | 12,729,013 | 1999 | 12,821,110 | 1998 | 12,834,724 | 1997 | 12,809,156 | 1996 | 12,721,690 | 1995 | 12,576,752 | 1994 | 12,394,244 | 1993 | 12,171,202 | 1992 | 11,870,042 | 1991 | 11,687,931 | 1990 | 11,406,555 | 1989 | 10,859,570 | 1988 | 10,456,352 | 1987 | 10,306,363 | 1986 | 10,027,161 | 1985 | 9,640,680 | 1984 | 9,439,155 | 1983 | 9,201,332 | 1982 | 8,768,153 | 1981 | 8,230,718 | 1980 | 7,876,364 | 1979 | 7,665,665 | 1978 | 7,364,388 | 1977 | 7,035,097 | 1976 | 6,831,619 | 1975 | 6,689,838 | 1974 | 6,532,926 | 1973 | 6,430,995 | 1972 | 6,380,770 | 1971 | 6,344,691 | 1970 | 6,309,667 | 1969 | 6,390,465 | 1968 | 6,473,103 | 1967 | 6,517,344 | 1966 | 6,628,939 | 1965 | 6,731,116 | 1964 | 6,729,811 | 1963 | 6,884,916 | 1962 | 7,066,345 | 1961 | 7,001,848 | 1960 | 6,973,288 |
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