Year | Value | 2022 | 23,953,915 | 2021 | 23,711,002 | 2020 | 23,443,099 | 2019 | 23,141,593 | 2018 | 22,800,123 | 2017 | 22,415,076 | 2016 | 22,007,834 | 2015 | 21,584,219 | 2014 | 21,148,651 | 2013 | 20,724,416 | 2012 | 20,324,557 | 2011 | 19,945,818 | 2010 | 19,591,105 | 2009 | 19,267,979 | 2008 | 18,942,381 | 2007 | 18,634,188 | 2006 | 18,354,591 | 2005 | 18,103,073 | 2004 | 17,872,478 | 2003 | 17,644,048 | 2002 | 17,396,101 | 2001 | 17,112,836 | 2000 | 16,787,421 | 1999 | 16,420,720 | 1998 | 16,021,700 | 1997 | 15,601,050 | 1996 | 15,168,054 | 1995 | 14,731,884 | 1994 | 14,297,214 | 1993 | 13,864,679 | 1992 | 13,438,718 | 1991 | 13,024,860 | 1990 | 12,619,996 | 1989 | 12,218,710 | 1988 | 11,803,836 | 1987 | 11,369,367 | 1986 | 10,928,879 | 1985 | 10,500,424 | 1984 | 10,102,656 | 1983 | 9,752,251 | 1982 | 9,456,089 | 1981 | 9,205,366 | 1980 | 8,977,973 | 1979 | 8,756,252 | 1978 | 8,540,317 | 1977 | 8,324,475 | 1976 | 8,106,101 | 1975 | 7,885,855 | 1974 | 7,666,973 | 1973 | 7,461,371 | 1972 | 7,277,790 | 1971 | 7,111,377 | 1970 | 6,971,610 | 1969 | 6,858,983 | 1968 | 6,753,914 | 1967 | 6,647,101 | 1966 | 6,533,956 | 1965 | 6,413,209 | 1964 | 6,285,450 | 1963 | 6,148,075 | 1962 | 5,998,945 | 1961 | 5,841,486 | 1960 | 5,677,746 |
|