| Year | Value | | 2022 | 3,222,798 | | 2021 | 3,274,022 | | 2020 | 3,304,563 | | 2019 | 3,336,900 | | 2018 | 3,348,008 | | 2017 | 3,349,456 | | 2016 | 3,328,254 | | 2015 | 3,291,069 | | 2014 | 3,251,054 | | 2013 | 3,213,473 | | 2012 | 3,193,944 | | 2011 | 3,183,089 | | 2010 | 3,169,991 | | 2009 | 3,153,052 | | 2008 | 3,139,038 | | 2007 | 3,130,862 | | 2006 | 3,137,336 | | 2005 | 3,125,903 | | 2004 | 3,109,721 | | 2003 | 3,089,362 | | 2002 | 3,064,836 | | 2001 | 3,039,509 | | 2000 | 3,005,077 | | 1999 | 2,960,163 | | 1998 | 2,916,190 | | 1997 | 2,876,683 | | 1996 | 2,830,837 | | 1995 | 2,780,179 | | 1994 | 2,727,933 | | 1993 | 2,718,194 | | 1992 | 2,705,787 | | 1991 | 2,653,917 | | 1990 | 2,616,411 | | 1989 | 2,584,042 | | 1988 | 2,498,001 | | 1987 | 2,391,016 | | 1986 | 2,312,352 | | 1985 | 2,219,090 | | 1984 | 2,113,436 | | 1983 | 2,003,366 | | 1982 | 1,923,170 | | 1981 | 1,885,612 | | 1980 | 1,867,691 | | 1979 | 1,855,104 | | 1978 | 1,876,324 | | 1977 | 1,857,657 | | 1976 | 1,773,740 | | 1975 | 1,711,837 | | 1974 | 1,666,252 | | 1973 | 1,584,314 | | 1972 | 1,520,858 | | 1971 | 1,500,558 | | 1970 | 1,448,185 | | 1969 | 1,374,929 | | 1968 | 1,308,430 | | 1967 | 1,259,796 | | 1966 | 1,223,131 | | 1965 | 1,191,772 | | 1964 | 1,167,937 | | 1963 | 1,152,222 | | 1962 | 1,136,197 | | 1961 | 1,118,348 | | 1960 | 1,098,681 |
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