| Year | Value | | 2022 | 1,903,173 | | 2021 | 1,757,537 | | 2020 | 1,619,533 | | 2019 | 1,508,163 | | 2018 | 1,445,177 | | 2017 | 1,439,123 | | 2016 | 1,492,283 | | 2015 | 1,574,306 | | 2014 | 1,661,250 | | 2013 | 1,751,254 | | 2012 | 1,823,690 | | 2011 | 1,865,668 | | 2010 | 1,874,737 | | 2009 | 1,853,598 | | 2008 | 1,807,778 | | 2007 | 1,745,171 | | 2006 | 1,673,668 | | 2005 | 1,598,526 | | 2004 | 1,523,418 | | 2003 | 1,453,400 | | 2002 | 1,390,847 | | 2001 | 1,336,462 | | 2000 | 1,294,340 | | 1999 | 1,266,897 | | 1998 | 1,250,872 | | 1997 | 1,241,553 | | 1996 | 1,237,267 | | 1995 | 1,233,926 | | 1994 | 1,224,906 | | 1993 | 1,212,482 | | 1992 | 1,196,012 | | 1991 | 1,169,102 | | 1990 | 1,132,545 | | 1989 | 1,089,787 | | 1988 | 1,038,561 | | 1987 | 982,005 | | 1986 | 926,126 | | 1985 | 862,077 | | 1984 | 795,251 | | 1983 | 736,721 | | 1982 | 686,068 | | 1981 | 644,308 | | 1980 | 613,361 | | 1979 | 591,437 | | 1978 | 573,755 | | 1977 | 559,685 | | 1976 | 547,578 | | 1975 | 536,417 | | 1974 | 526,254 | | 1973 | 516,612 | | 1972 | 506,919 | | 1971 | 496,895 | | 1970 | 485,742 | | 1969 | 473,632 | | 1968 | 461,569 | | 1967 | 449,675 | | 1966 | 438,119 | | 1965 | 426,959 | | 1964 | 416,318 | | 1963 | 406,366 | | 1962 | 397,020 | | 1961 | 388,203 | | 1960 | 380,399 |
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