| Year | Value | | 2022 | 1,535,899 | | 2021 | 1,579,512 | | 2020 | 1,638,384 | | 2019 | 1,694,529 | | 2018 | 1,751,151 | | 2017 | 1,811,943 | | 2016 | 1,869,738 | | 2015 | 1,918,602 | | 2014 | 1,955,259 | | 2013 | 1,977,907 | | 2012 | 1,984,484 | | 2011 | 1,972,081 | | 2010 | 1,945,868 | | 2009 | 1,916,660 | | 2008 | 1,883,896 | | 2007 | 1,845,366 | | 2006 | 1,804,475 | | 2005 | 1,769,161 | | 2004 | 1,741,993 | | 2003 | 1,712,677 | | 2002 | 1,669,472 | | 2001 | 1,626,059 | | 2000 | 1,594,809 | | 1999 | 1,561,986 | | 1998 | 1,527,909 | | 1997 | 1,500,940 | | 1996 | 1,469,300 | | 1995 | 1,427,037 | | 1994 | 1,379,903 | | 1993 | 1,334,523 | | 1992 | 1,294,729 | | 1991 | 1,261,595 | | 1990 | 1,236,943 | | 1989 | 1,224,031 | | 1988 | 1,224,454 | | 1987 | 1,226,652 | | 1986 | 1,221,518 | | 1985 | 1,221,319 | | 1984 | 1,220,571 | | 1983 | 1,204,168 | | 1982 | 1,173,259 | | 1981 | 1,135,277 | | 1980 | 1,105,600 | | 1979 | 1,064,082 | | 1978 | 1,009,506 | | 1977 | 987,947 | | 1976 | 1,016,998 | | 1975 | 1,044,111 | | 1974 | 1,078,548 | | 1973 | 1,143,675 | | 1972 | 1,192,590 | | 1971 | 1,205,926 | | 1970 | 1,211,366 | | 1969 | 1,220,340 | | 1968 | 1,215,469 | | 1967 | 1,199,968 | | 1966 | 1,187,293 | | 1965 | 1,170,211 | | 1964 | 1,154,749 | | 1963 | 1,146,413 | | 1962 | 1,137,953 | | 1961 | 1,127,510 | | 1960 | 1,119,594 |
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