Year | Value | 2022 | 32,969,518 | 2021 | 32,077,072 | 2020 | 31,178,239 | 2019 | 30,285,595 | 2018 | 29,423,878 | 2017 | 28,569,441 | 2016 | 27,696,493 | 2015 | 26,843,246 | 2014 | 26,038,704 | 2013 | 25,251,731 | 2012 | 24,487,611 | 2011 | 23,760,421 | 2010 | 23,073,723 | 2009 | 22,436,660 | 2008 | 21,845,571 | 2007 | 21,280,513 | 2006 | 20,735,982 | 2005 | 20,211,114 | 2004 | 19,694,411 | 2003 | 19,186,754 | 2002 | 18,694,946 | 2001 | 18,220,716 | 2000 | 17,768,505 | 1999 | 17,337,893 | 1998 | 16,923,195 | 1997 | 16,521,724 | 1996 | 16,079,553 | 1995 | 15,594,830 | 1994 | 14,912,873 | 1993 | 14,206,254 | 1992 | 13,816,881 | 1991 | 13,561,175 | 1990 | 13,303,459 | 1989 | 13,087,604 | 1988 | 12,956,772 | 1987 | 12,964,793 | 1986 | 12,909,797 | 1985 | 12,680,065 | 1984 | 12,426,223 | 1983 | 12,163,328 | 1982 | 11,901,827 | 1981 | 11,640,015 | 1980 | 11,413,587 | 1979 | 11,127,844 | 1978 | 10,741,128 | 1977 | 10,363,575 | 1976 | 10,019,210 | 1975 | 9,703,732 | 1974 | 9,404,221 | 1973 | 9,123,668 | 1972 | 8,860,585 | 1971 | 8,622,890 | 1970 | 8,411,676 | 1969 | 8,217,930 | 1968 | 8,035,529 | 1967 | 7,859,471 | 1966 | 7,689,643 | 1965 | 7,524,154 | 1964 | 7,363,639 | 1963 | 7,209,807 | 1962 | 7,060,376 | 1961 | 6,917,521 | 1960 | 6,788,375 |
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