| Year | Value | | 2022 | 2,090,138 | | 2021 | 2,046,236 | | 2020 | 1,989,169 | | 2019 | 1,928,401 | | 2018 | 1,870,132 | | 2017 | 1,818,907 | | 2016 | 1,772,778 | | 2015 | 1,726,085 | | 2014 | 1,685,961 | | 2013 | 1,653,718 | | 2012 | 1,624,187 | | 2011 | 1,588,334 | | 2010 | 1,522,162 | | 2009 | 1,447,894 | | 2008 | 1,390,767 | | 2007 | 1,346,521 | | 2006 | 1,322,749 | | 2005 | 1,315,154 | | 2004 | 1,317,675 | | 2003 | 1,331,443 | | 2002 | 1,358,217 | | 2001 | 1,397,338 | | 2000 | 1,448,055 | | 1999 | 1,502,629 | | 1998 | 1,561,539 | | 1997 | 1,606,769 | | 1996 | 1,639,043 | | 1995 | 1,659,691 | | 1994 | 1,668,571 | | 1993 | 1,666,421 | | 1992 | 1,656,711 | | 1991 | 1,643,039 | | 1990 | 1,626,279 | | 1989 | 1,607,149 | | 1988 | 1,574,277 | | 1987 | 1,528,533 | | 1986 | 1,474,911 | | 1985 | 1,422,959 | | 1984 | 1,377,681 | | 1983 | 1,338,554 | | 1982 | 1,305,924 | | 1981 | 1,278,073 | | 1980 | 1,251,567 | | 1979 | 1,225,180 | | 1978 | 1,199,874 | | 1977 | 1,174,378 | | 1976 | 1,147,459 | | 1975 | 1,120,303 | | 1974 | 1,093,129 | | 1973 | 1,066,237 | | 1972 | 1,042,856 | | 1971 | 1,025,055 | | 1970 | 1,013,086 | | 1969 | 1,005,912 | | 1968 | 1,001,148 | | 1967 | 996,527 | | 1966 | 988,227 | | 1965 | 972,703 | | 1964 | 949,198 | | 1963 | 918,631 | | 1962 | 880,936 | | 1961 | 839,225 | | 1960 | 797,251 |
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