| Year | Value | | 2023 | 5,438,940 | | 2022 | 5,461,345 | | 2021 | 5,497,667 | | 2020 | 5,530,297 | | 2019 | 5,546,807 | | 2018 | 5,561,949 | | 2017 | 5,575,242 | | 2016 | 5,586,840 | | 2015 | 5,593,658 | | 2014 | 5,600,578 | | 2013 | 5,608,014 | | 2012 | 5,611,512 | | 2011 | 5,613,783 | | 2010 | 5,616,912 | | 2009 | 5,620,775 | | 2008 | 5,624,560 | | 2007 | 5,627,645 | | 2006 | 5,628,734 | | 2005 | 5,626,237 | | 2004 | 5,619,685 | | 2003 | 5,610,062 | | 2002 | 5,599,564 | | 2001 | 5,589,389 | | 2000 | 5,578,929 | | 1999 | 5,567,712 | | 1998 | 5,555,903 | | 1997 | 5,543,867 | | 1996 | 5,531,741 | | 1995 | 5,519,129 | | 1994 | 5,505,251 | | 1993 | 5,486,211 | | 1992 | 5,459,518 | | 1991 | 5,426,188 | | 1990 | 5,383,926 | | 1989 | 5,335,352 | | 1988 | 5,285,880 | | 1987 | 5,238,446 | | 1986 | 5,194,278 | | 1985 | 5,152,157 | | 1984 | 5,111,837 | | 1983 | 5,072,716 | | 1982 | 5,036,012 | | 1981 | 5,007,232 | | 1980 | 4,986,103 | | 1979 | 4,964,296 | | 1978 | 4,937,037 | | 1977 | 4,903,318 | | 1976 | 4,862,698 | | 1975 | 4,815,009 |
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