Year | Value | 2022 | 32,498,051 | 2021 | 31,524,545 | 2020 | 30,598,424 | 2019 | 29,650,100 | 2018 | 28,726,618 | 2017 | 27,883,632 | 2016 | 27,060,229 | 2015 | 26,276,356 | 2014 | 25,610,771 | 2013 | 25,031,473 | 2012 | 24,457,319 | 2011 | 23,808,062 | 2010 | 23,126,158 | 2009 | 22,438,788 | 2008 | 21,725,078 | 2007 | 21,006,029 | 2006 | 20,259,329 | 2005 | 19,528,077 | 2004 | 18,876,364 | 2003 | 18,267,771 | 2002 | 17,659,689 | 2001 | 17,079,972 | 2000 | 16,571,987 | 1999 | 16,093,392 | 1998 | 15,638,038 | 1997 | 15,279,413 | 1996 | 14,989,104 | 1995 | 14,686,805 | 1994 | 14,327,250 | 1993 | 13,967,115 | 1992 | 13,592,923 | 1991 | 13,183,096 | 1990 | 12,813,404 | 1989 | 12,448,590 | 1988 | 12,077,363 | 1987 | 11,708,609 | 1986 | 11,350,049 | 1985 | 11,032,100 | 1984 | 10,726,674 | 1983 | 10,440,383 | 1982 | 10,168,459 | 1981 | 9,915,827 | 1980 | 9,702,639 | 1979 | 9,447,588 | 1978 | 9,110,193 | 1977 | 8,771,020 | 1976 | 8,480,915 | 1975 | 8,234,200 | 1974 | 8,016,666 | 1973 | 7,828,817 | 1972 | 7,708,190 | 1971 | 7,631,290 | 1970 | 7,523,776 | 1969 | 7,383,220 | 1968 | 7,237,415 | 1967 | 7,071,380 | 1966 | 6,895,797 | 1965 | 6,731,748 | 1964 | 6,581,557 | 1963 | 6,447,021 | 1962 | 6,325,036 | 1961 | 6,202,879 | 1960 | 6,076,534 |
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