| Year | Value | | 2022 | 4,944,055 | | 2021 | 4,843,921 | | 2020 | 4,741,717 | | 2019 | 4,640,105 | | 2018 | 4,538,006 | | 2017 | 4,439,244 | | 2016 | 4,341,940 | | 2015 | 4,244,558 | | 2014 | 4,149,426 | | 2013 | 4,058,822 | | 2012 | 3,973,488 | | 2011 | 3,892,805 | | 2010 | 3,816,785 | | 2009 | 3,746,357 | | 2008 | 3,680,787 | | 2007 | 3,618,745 | | 2006 | 3,558,928 | | 2005 | 3,500,113 | | 2004 | 3,441,092 | | 2003 | 3,381,399 | | 2002 | 3,320,485 | | 2001 | 3,258,343 | | 2000 | 3,193,403 | | 1999 | 3,148,968 | | 1998 | 3,126,452 | | 1997 | 3,102,188 | | 1996 | 3,060,702 | | 1995 | 3,003,242 | | 1994 | 2,948,898 | | 1993 | 2,904,373 | | 1992 | 2,871,785 | | 1991 | 2,823,443 | | 1990 | 2,757,542 | | 1989 | 2,683,456 | | 1988 | 2,596,365 | | 1987 | 2,507,622 | | 1986 | 2,421,852 | | 1985 | 2,342,278 | | 1984 | 2,272,232 | | 1983 | 2,209,434 | | 1982 | 2,149,357 | | 1981 | 2,091,485 | | 1980 | 2,035,277 | | 1979 | 1,979,758 | | 1978 | 1,923,570 | | 1977 | 1,867,101 | | 1976 | 1,811,923 | | 1975 | 1,758,663 | | 1974 | 1,707,373 | | 1973 | 1,658,049 | | 1972 | 1,610,196 | | 1971 | 1,563,455 | | 1970 | 1,517,421 | | 1969 | 1,471,199 | | 1968 | 1,424,885 | | 1967 | 1,379,373 | | 1966 | 1,334,946 | | 1965 | 1,291,503 | | 1964 | 1,248,917 | | 1963 | 1,207,191 | | 1962 | 1,166,492 | | 1961 | 1,127,034 | | 1960 | 1,089,098 |
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