| Year | Value | | 2022 | 1,796,172 | | 2021 | 1,753,726 | | 2020 | 1,725,414 | | 2019 | 1,685,879 | | 2018 | 1,644,459 | | 2017 | 1,613,597 | | 2016 | 1,579,926 | | 2015 | 1,535,873 | | 2014 | 1,486,850 | | 2013 | 1,440,838 | | 2012 | 1,400,165 | | 2011 | 1,361,539 | | 2010 | 1,325,481 | | 2009 | 1,302,677 | | 2008 | 1,296,537 | | 2007 | 1,283,251 | | 2006 | 1,260,977 | | 2005 | 1,251,131 | | 2004 | 1,238,387 | | 2003 | 1,206,511 | | 2002 | 1,163,838 | | 2001 | 1,116,299 | | 2000 | 1,084,794 | | 1999 | 1,041,799 | | 1998 | 981,585 | | 1997 | 959,362 | | 1996 | 983,405 | | 1995 | 1,007,090 | | 1994 | 1,038,932 | | 1993 | 1,096,970 | | 1992 | 1,139,220 | | 1991 | 1,153,940 | | 1990 | 1,159,695 | | 1989 | 1,165,846 | | 1988 | 1,161,895 | | 1987 | 1,149,176 | | 1986 | 1,136,084 | | 1985 | 1,120,407 | | 1984 | 1,103,943 | | 1983 | 1,089,138 | | 1982 | 1,075,910 | | 1981 | 1,060,633 | | 1980 | 1,039,800 | | 1979 | 1,011,670 | | 1978 | 978,286 | | 1977 | 943,420 | | 1976 | 910,769 | | 1975 | 884,776 | | 1974 | 877,349 | | 1973 | 880,800 | | 1972 | 881,394 | | 1971 | 885,108 | | 1970 | 890,557 | | 1969 | 889,595 | | 1968 | 880,917 | | 1967 | 867,736 | | 1966 | 854,738 | | 1965 | 839,731 | | 1964 | 825,536 | | 1963 | 816,376 | | 1962 | 807,259 | | 1961 | 795,112 | | 1960 | 795,885 |
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