| Year | Value | | 2022 | 5,030,866 | | 2021 | 4,983,016 | | 2020 | 4,936,089 | | 2019 | 4,889,944 | | 2018 | 4,848,537 | | 2017 | 4,812,126 | | 2016 | 4,772,036 | | 2015 | 4,725,303 | | 2014 | 4,677,816 | | 2013 | 4,634,966 | | 2012 | 4,589,060 | | 2011 | 4,540,550 | | 2010 | 4,495,271 | | 2009 | 4,453,329 | | 2008 | 4,413,286 | | 2007 | 4,370,429 | | 2006 | 4,321,569 | | 2005 | 4,263,421 | | 2004 | 4,192,619 | | 2003 | 4,112,099 | | 2002 | 4,026,406 | | 2001 | 3,937,635 | | 2000 | 3,849,081 | | 1999 | 3,766,346 | | 1998 | 3,683,823 | | 1997 | 3,593,615 | | 1996 | 3,498,203 | | 1995 | 3,396,317 | | 1994 | 3,287,484 | | 1993 | 3,174,652 | | 1992 | 3,060,756 | | 1991 | 2,949,166 | | 1990 | 2,847,227 | | 1989 | 2,762,287 | | 1988 | 2,683,747 | | 1987 | 2,600,652 | | 1986 | 2,514,649 | | 1985 | 2,424,199 | | 1984 | 2,326,228 | | 1983 | 2,223,845 | | 1982 | 2,124,693 | | 1981 | 2,033,503 | | 1980 | 1,953,977 | | 1979 | 1,888,061 | | 1978 | 1,830,046 | | 1977 | 1,775,062 | | 1976 | 1,724,276 | | 1975 | 1,673,123 | | 1974 | 1,616,119 | | 1973 | 1,551,499 | | 1972 | 1,479,418 | | 1971 | 1,405,206 | | 1970 | 1,351,007 | | 1969 | 1,321,020 | | 1968 | 1,301,246 | | 1967 | 1,287,629 | | 1966 | 1,273,436 | | 1965 | 1,255,000 | | 1964 | 1,233,750 | | 1963 | 1,210,230 | | 1962 | 1,183,302 | | 1961 | 1,153,208 | | 1960 | 1,122,440 |
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