Year | Value | 2023 | 43,593,629 | 2022 | 42,843,543 | 2021 | 42,078,054 | 2020 | 41,235,304 | 2019 | 40,324,192 | 2018 | 39,413,305 | 2017 | 38,548,676 | 2016 | 37,706,060 | 2015 | 36,910,151 | 2014 | 36,187,741 | 2013 | 35,498,348 | 2012 | 34,824,627 | 2011 | 34,178,077 | 2010 | 33,541,016 | 2009 | 32,875,608 | 2008 | 32,190,831 | 2007 | 31,518,400 | 2006 | 30,854,124 | 2005 | 30,190,846 | 2004 | 29,527,900 | 2003 | 28,836,228 | 2002 | 28,085,803 | 2001 | 27,286,323 | 2000 | 26,454,908 | 1999 | 25,603,984 | 1998 | 24,533,468 | 1997 | 23,251,186 | 1996 | 22,005,177 | 1995 | 20,821,819 | 1994 | 19,690,622 | 1993 | 18,847,941 | 1992 | 18,316,045 | 1991 | 17,854,791 | 1990 | 17,444,385 | 1989 | 17,100,486 | 1988 | 16,831,202 | 1987 | 16,617,763 | 1986 | 16,418,849 | 1985 | 16,200,783 | 1984 | 15,957,918 | 1983 | 15,686,059 | 1982 | 15,392,398 | 1981 | 15,108,717 | 1980 | 14,850,780 | 1979 | 14,607,505 | 1978 | 14,371,850 | 1977 | 14,141,867 | 1976 | 13,909,970 | 1975 | 13,668,121 | 1974 | 13,414,503 |
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