Year | Value | 2023 | 20,128,390 | 2022 | 20,550,751 | 2021 | 23,554,678 | 2020 | 23,737,604 | 2019 | 23,871,817 | 2018 | 23,982,374 | 2017 | 24,090,080 | 2016 | 24,181,888 | 2015 | 24,260,001 | 2014 | 24,331,203 | 2013 | 24,465,742 | 2012 | 24,540,714 | 2011 | 24,619,417 | 2010 | 24,720,003 | 2009 | 24,827,572 | 2008 | 24,938,391 | 2007 | 25,065,410 | 2006 | 25,204,855 | 2005 | 25,361,812 | 2004 | 25,531,650 | 2003 | 25,714,014 | 2002 | 25,912,812 | 2001 | 26,143,936 | 2000 | 26,402,974 | 1999 | 26,658,054 | 1998 | 26,904,711 | 1997 | 27,142,463 | 1996 | 27,385,478 | 1995 | 27,624,346 | 1994 | 27,845,604 | 1993 | 27,990,982 | 1992 | 27,992,198 | 1991 | 27,937,039 | 1990 | 27,899,496 | 1989 | 27,860,683 | 1988 | 27,756,703 | 1987 | 27,663,091 | 1986 | 27,583,745 | 1985 | 27,512,302 | 1984 | 27,448,520 | 1983 | 27,372,635 | 1982 | 27,304,925 | 1981 | 27,246,899 | 1980 | 27,143,500 | 1979 | 27,049,673 | 1978 | 26,966,049 | 1977 | 26,887,374 | 1976 | 26,794,182 | 1975 | 26,680,429 | 1974 | 26,547,089 |
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