Year | Value | 2023 | 60,411,250 | 2022 | 59,814,578 | 2021 | 59,247,344 | 2020 | 58,647,559 | 2019 | 57,951,684 | 2018 | 57,148,264 | 2017 | 56,210,573 | 2016 | 55,150,324 | 2015 | 54,053,406 | 2014 | 52,914,981 | 2013 | 51,696,082 | 2012 | 50,504,424 | 2011 | 49,396,098 | 2010 | 48,366,584 | 2009 | 47,476,455 | 2008 | 46,734,171 | 2007 | 45,997,362 | 2006 | 45,175,058 | 2005 | 44,294,678 | 2004 | 43,366,847 | 2003 | 42,423,571 | 2002 | 41,523,659 | 2001 | 40,641,367 | 2000 | 39,795,717 | 1999 | 39,017,462 | 1998 | 38,273,088 | 1997 | 37,546,699 | 1996 | 36,854,454 | 1995 | 36,176,938 | 1994 | 35,461,302 | 1993 | 34,718,564 | 1992 | 33,990,506 | 1991 | 33,273,049 | 1990 | 32,549,446 | 1989 | 31,821,596 | 1988 | 31,071,613 | 1987 | 30,267,366 | 1986 | 29,419,819 | 1985 | 28,539,773 | 1984 | 27,639,314 | 1983 | 26,501,059 | 1982 | 25,137,219 | 1981 | 23,818,929 | 1980 | 22,564,514 | 1979 | 21,369,823 | 1978 | 20,494,415 | 1977 | 19,955,273 | 1976 | 19,505,077 | 1975 | 19,117,333 | 1974 | 18,793,968 |
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