Year | Value | 2022 | 23,420,005 | 2021 | 22,814,719 | 2020 | 22,209,433 | 2019 | 21,607,642 | 2018 | 20,993,202 | 2017 | 20,335,703 | 2016 | 19,686,813 | 2015 | 19,086,685 | 2014 | 18,506,560 | 2013 | 18,005,088 | 2012 | 17,593,602 | 2011 | 17,226,354 | 2010 | 16,888,820 | 2009 | 16,495,485 | 2008 | 16,057,614 | 2007 | 15,624,739 | 2006 | 15,199,862 | 2005 | 14,811,660 | 2004 | 14,469,105 | 2003 | 14,157,975 | 2002 | 13,855,688 | 2001 | 13,550,233 | 2000 | 13,231,789 | 1999 | 12,905,335 | 1998 | 12,618,570 | 1997 | 12,350,831 | 1996 | 12,068,791 | 1995 | 11,796,609 | 1994 | 11,511,290 | 1993 | 11,254,648 | 1992 | 11,075,709 | 1991 | 10,908,230 | 1990 | 10,718,531 | 1989 | 10,525,660 | 1988 | 10,405,037 | 1987 | 10,312,015 | 1986 | 10,137,606 | 1985 | 9,941,119 | 1984 | 9,756,023 | 1983 | 9,543,290 | 1982 | 9,241,709 | 1981 | 8,861,656 | 1980 | 8,472,867 | 1979 | 8,098,804 | 1978 | 7,741,783 | 1977 | 7,400,180 | 1976 | 7,080,043 | 1975 | 6,778,079 | 1974 | 6,487,351 | 1973 | 6,237,654 | 1972 | 6,031,769 | 1971 | 5,839,516 | 1970 | 5,660,726 | 1969 | 5,495,118 | 1968 | 5,335,075 | 1967 | 5,179,092 | 1966 | 5,029,387 | 1965 | 4,881,209 | 1964 | 4,729,533 | 1963 | 4,585,253 | 1962 | 4,449,016 | 1961 | 4,315,999 | 1960 | 4,189,386 |
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