| Year | Value | | 2022 | 1,868,011 | | 2021 | 1,919,367 | | 2020 | 1,971,268 | | 2019 | 2,003,770 | | 2018 | 2,014,949 | | 2017 | 2,014,620 | | 2016 | 2,006,508 | | 2015 | 1,990,983 | | 2014 | 1,976,004 | | 2013 | 1,969,099 | | 2012 | 1,967,558 | | 2011 | 1,955,819 | | 2010 | 1,934,469 | | 2009 | 1,916,446 | | 2008 | 1,888,834 | | 2007 | 1,834,810 | | 2006 | 1,772,129 | | 2005 | 1,716,779 | | 2004 | 1,657,871 | | 2003 | 1,598,659 | | 2002 | 1,547,749 | | 2001 | 1,499,848 | | 2000 | 1,451,858 | | 1999 | 1,400,655 | | 1998 | 1,352,327 | | 1997 | 1,311,890 | | 1996 | 1,277,819 | | 1995 | 1,248,800 | | 1994 | 1,230,772 | | 1993 | 1,225,781 | | 1992 | 1,220,329 | | 1991 | 1,207,689 | | 1990 | 1,203,485 | | 1989 | 1,202,364 | | 1988 | 1,187,704 | | 1987 | 1,159,270 | | 1986 | 1,124,854 | | 1985 | 1,097,762 | | 1984 | 1,057,248 | | 1983 | 1,003,165 | | 1982 | 979,856 | | 1981 | 999,117 | | 1980 | 1,020,244 | | 1979 | 1,052,406 | | 1978 | 1,111,102 | | 1977 | 1,156,622 | | 1976 | 1,174,892 | | 1975 | 1,183,691 | | 1974 | 1,187,327 | | 1973 | 1,178,717 | | 1972 | 1,162,689 | | 1971 | 1,148,413 | | 1970 | 1,127,069 | | 1969 | 1,106,151 | | 1968 | 1,093,299 | | 1967 | 1,078,451 | | 1966 | 1,064,930 | | 1965 | 1,049,301 | | 1964 | 1,016,593 | | 1963 | 970,838 | | 1962 | 923,501 | | 1961 | 875,116 | | 1960 | 835,618 |
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