| Year | Value | | 2022 | 1,766,887 | | 2021 | 1,744,999 | | 2020 | 1,738,902 | | 2019 | 1,743,041 | | 2018 | 1,760,125 | | 2017 | 1,801,943 | | 2016 | 1,844,972 | | 2015 | 1,850,184 | | 2014 | 1,824,069 | | 2013 | 1,778,606 | | 2012 | 1,698,323 | | 2011 | 1,599,448 | | 2010 | 1,523,243 | | 2009 | 1,471,813 | | 2008 | 1,431,695 | | 2007 | 1,406,008 | | 2006 | 1,398,093 | | 2005 | 1,397,849 | | 2004 | 1,390,729 | | 2003 | 1,375,630 | | 2002 | 1,362,511 | | 2001 | 1,358,577 | | 2000 | 1,363,174 | | 1999 | 1,373,044 | | 1998 | 1,385,874 | | 1997 | 1,397,416 | | 1996 | 1,406,557 | | 1995 | 1,415,194 | | 1994 | 1,425,658 | | 1993 | 1,441,754 | | 1992 | 1,467,649 | | 1991 | 1,504,948 | | 1990 | 1,551,155 | | 1989 | 1,577,920 | | 1988 | 1,555,076 | | 1987 | 1,500,581 | | 1986 | 1,442,945 | | 1985 | 1,391,828 | | 1984 | 1,375,122 | | 1983 | 1,416,405 | | 1982 | 1,483,708 | | 1981 | 1,535,415 | | 1980 | 1,562,668 | | 1979 | 1,571,465 | | 1978 | 1,572,521 | | 1977 | 1,573,658 | | 1976 | 1,574,434 | | 1975 | 1,572,335 | | 1974 | 1,566,612 | | 1973 | 1,556,397 | | 1972 | 1,541,609 | | 1971 | 1,525,502 | | 1970 | 1,509,776 | | 1969 | 1,492,900 | | 1968 | 1,472,412 | | 1967 | 1,448,902 | | 1966 | 1,424,973 | | 1965 | 1,399,964 | | 1964 | 1,374,263 | | 1963 | 1,352,437 | | 1962 | 1,332,620 | | 1961 | 1,312,790 | | 1960 | 1,293,902 |
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