| Year | Value | | 2023 | 1,563,179 | | 2022 | 1,474,032 | | 2021 | 1,554,639 | | 2020 | 1,548,775 | | 2019 | 1,551,912 | | 2018 | 1,544,998 | | 2017 | 1,503,269 | | 2016 | 1,437,908 | | 2015 | 1,331,916 | | 2014 | 1,193,578 | | 2013 | 1,081,071 | | 2012 | 1,022,271 | | 2011 | 1,042,988 | | 2010 | 1,153,572 | | 2009 | 1,317,924 | | 2008 | 1,508,012 | | 2007 | 1,700,969 | | 2006 | 1,801,609 | | 2005 | 1,797,719 | | 2004 | 1,710,296 | | 2003 | 1,546,160 | | 2002 | 1,376,185 | | 2001 | 1,269,481 | | 2000 | 1,266,842 | | 1999 | 1,353,650 | | 1998 | 1,498,089 | | 1997 | 1,630,638 | | 1996 | 1,721,009 | | 1995 | 1,772,373 | | 1994 | 1,789,288 | | 1993 | 1,775,243 | | 1992 | 1,725,878 | | 1991 | 1,651,954 | | 1990 | 1,543,646 | | 1989 | 1,423,840 | | 1988 | 1,314,142 | | 1987 | 1,201,621 | | 1986 | 1,099,256 | | 1985 | 1,060,788 | | 1984 | 1,098,660 | | 1983 | 1,166,309 | | 1982 | 1,284,607 | | 1981 | 1,437,711 | | 1980 | 1,536,474 | | 1979 | 1,550,856 | | 1978 | 1,522,280 | | 1977 | 1,475,252 | | 1976 | 1,409,473 | | 1975 | 1,362,079 | | 1974 | 1,318,398 |
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