| Year | Value | | 2022 | 4,220,157 | | 2021 | 4,178,622 | | 2020 | 4,101,702 | | 2019 | 4,052,088 | | 2018 | 4,003,749 | | 2017 | 3,953,813 | | 2016 | 3,923,222 | | 2015 | 3,895,227 | | 2014 | 3,869,404 | | 2013 | 3,845,557 | | 2012 | 3,824,280 | | 2011 | 3,798,768 | | 2010 | 3,767,051 | | 2009 | 3,736,413 | | 2008 | 3,703,550 | | 2007 | 3,668,772 | | 2006 | 3,633,955 | | 2005 | 3,600,908 | | 2004 | 3,570,452 | | 2003 | 3,539,045 | | 2002 | 3,506,624 | | 2001 | 3,474,709 | | 2000 | 3,451,097 | | 1999 | 3,434,609 | | 1998 | 3,417,229 | | 1997 | 3,399,620 | | 1996 | 3,379,037 | | 1995 | 3,355,216 | | 1994 | 3,327,309 | | 1993 | 3,295,777 | | 1992 | 3,261,230 | | 1991 | 3,225,554 | | 1990 | 3,188,779 | | 1989 | 3,151,922 | | 1988 | 3,114,212 | | 1987 | 3,074,789 | | 1986 | 3,034,658 | | 1985 | 2,995,267 | | 1984 | 2,956,902 | | 1983 | 2,919,360 | | 1982 | 2,880,871 | | 1981 | 2,838,550 | | 1980 | 2,780,564 | | 1979 | 2,716,459 | | 1978 | 2,652,470 | | 1977 | 2,590,965 | | 1976 | 2,531,373 | | 1975 | 2,472,570 | | 1974 | 2,414,753 | | 1973 | 2,356,856 | | 1972 | 2,298,257 | | 1971 | 2,239,494 | | 1970 | 2,180,176 | | 1969 | 2,120,861 | | 1968 | 2,061,583 | | 1967 | 2,002,247 | | 1966 | 1,944,343 | | 1965 | 1,888,127 | | 1964 | 1,833,103 | | 1963 | 1,779,146 | | 1962 | 1,720,042 | | 1961 | 1,662,998 | | 1960 | 1,607,588 |
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