| Year | Value | | 2022 | 1,871,277 | | 2021 | 1,833,018 | | 2020 | 1,795,608 | | 2019 | 1,762,465 | | 2018 | 1,727,121 | | 2017 | 1,682,687 | | 2016 | 1,642,264 | | 2015 | 1,610,546 | | 2014 | 1,576,003 | | 2013 | 1,549,628 | | 2012 | 1,534,579 | | 2011 | 1,517,440 | | 2010 | 1,494,410 | | 2009 | 1,451,348 | | 2008 | 1,390,106 | | 2007 | 1,319,737 | | 2006 | 1,242,524 | | 2005 | 1,166,476 | | 2004 | 1,097,454 | | 2003 | 1,039,052 | | 2002 | 990,143 | | 2001 | 947,364 | | 2000 | 906,156 | | 1999 | 866,083 | | 1998 | 831,674 | | 1997 | 800,636 | | 1996 | 771,058 | | 1995 | 746,879 | | 1994 | 726,591 | | 1993 | 713,697 | | 1992 | 708,695 | | 1991 | 703,259 | | 1990 | 697,375 | | 1989 | 693,385 | | 1988 | 698,426 | | 1987 | 707,447 | | 1986 | 709,323 | | 1985 | 707,870 | | 1984 | 705,152 | | 1983 | 700,182 | | 1982 | 685,548 | | 1981 | 658,905 | | 1980 | 627,918 | | 1979 | 595,461 | | 1978 | 563,151 | | 1977 | 532,523 | | 1976 | 503,981 | | 1975 | 476,741 | | 1974 | 450,905 | | 1973 | 430,754 | | 1972 | 415,342 | | 1971 | 401,214 | | 1970 | 388,665 | | 1969 | 377,765 | | 1968 | 368,244 | | 1967 | 359,839 | | 1966 | 352,234 | | 1965 | 344,456 | | 1964 | 335,975 | | 1963 | 327,676 | | 1962 | 319,610 | | 1961 | 311,554 | | 1960 | 303,991 |
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