| Year | Value | | 2023 | 2,328,713 | | 2022 | 2,318,708 | | 2021 | 2,257,394 | | 2020 | 2,160,826 | | 2019 | 2,046,801 | | 2018 | 1,932,158 | | 2017 | 1,844,011 | | 2016 | 1,781,562 | | 2015 | 1,747,077 | | 2014 | 1,735,978 | | 2013 | 1,727,094 | | 2012 | 1,708,090 | | 2011 | 1,669,728 | | 2010 | 1,595,056 | | 2009 | 1,497,206 | | 2008 | 1,403,827 | | 2007 | 1,321,997 | | 2006 | 1,263,560 | | 2005 | 1,201,387 | | 2004 | 1,148,017 | | 2003 | 1,104,107 | | 2002 | 1,069,155 | | 2001 | 1,041,294 | | 2000 | 1,018,057 | | 1999 | 997,186 | | 1998 | 976,842 | | 1997 | 955,989 | | 1996 | 934,230 | | 1995 | 911,312 | | 1994 | 889,951 | | 1993 | 871,062 | | 1992 | 852,677 | | 1991 | 834,642 | | 1990 | 816,517 | | 1989 | 798,198 | | 1988 | 779,848 | | 1987 | 761,466 | | 1986 | 742,970 | | 1985 | 724,074 | | 1984 | 704,750 | | 1983 | 685,091 | | 1982 | 665,318 | | 1981 | 646,718 | | 1980 | 629,017 | | 1979 | 609,759 | | 1978 | 589,774 | | 1977 | 571,075 | | 1976 | 553,603 | | 1975 | 536,211 | | 1974 | 519,328 |
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