| Year | Value | | 2022 | 1,975,104 | | 2021 | 1,889,363 | | 2020 | 1,780,477 | | 2019 | 1,696,163 | | 2018 | 1,679,038 | | 2017 | 1,690,977 | | 2016 | 1,771,926 | | 2015 | 1,941,422 | | 2014 | 2,089,700 | | 2013 | 2,175,489 | | 2012 | 2,236,056 | | 2011 | 2,239,901 | | 2010 | 2,218,836 | | 2009 | 2,125,725 | | 2008 | 2,003,413 | | 2007 | 1,874,103 | | 2006 | 1,764,017 | | 2005 | 1,673,743 | | 2004 | 1,605,813 | | 2003 | 1,587,135 | | 2002 | 1,592,693 | | 2001 | 1,568,841 | | 2000 | 1,516,626 | | 1999 | 1,438,571 | | 1998 | 1,347,449 | | 1997 | 1,277,471 | | 1996 | 1,243,554 | | 1995 | 1,224,242 | | 1994 | 1,198,898 | | 1993 | 1,137,543 | | 1992 | 1,031,950 | | 1991 | 910,874 | | 1990 | 810,415 | | 1989 | 783,567 | | 1988 | 854,534 | | 1987 | 981,736 | | 1986 | 1,110,784 | | 1985 | 1,210,806 | | 1984 | 1,268,970 | | 1983 | 1,296,203 | | 1982 | 1,310,815 | | 1981 | 1,325,662 | | 1980 | 1,344,000 | | 1979 | 1,356,650 | | 1978 | 1,362,601 | | 1977 | 1,366,326 | | 1976 | 1,369,753 | | 1975 | 1,365,805 | | 1974 | 1,343,516 | | 1973 | 1,308,054 | | 1972 | 1,260,367 | | 1971 | 1,202,594 | | 1970 | 1,150,485 | | 1969 | 1,102,379 | | 1968 | 1,060,360 | | 1967 | 1,030,920 | | 1966 | 1,009,204 | | 1965 | 992,639 | | 1964 | 984,398 | | 1963 | 981,501 | | 1962 | 981,386 | | 1961 | 978,842 | | 1960 | 976,090 |
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