Year | Value | 2022 | 3,171,308 | 2021 | 3,355,428 | 2020 | 3,528,509 | 2019 | 3,677,066 | 2018 | 3,756,906 | 2017 | 3,749,261 | 2016 | 3,685,719 | 2015 | 3,584,914 | 2014 | 3,445,797 | 2013 | 3,303,520 | 2012 | 3,181,770 | 2011 | 3,074,328 | 2010 | 2,976,564 | 2009 | 2,880,994 | 2008 | 2,791,313 | 2007 | 2,713,359 | 2006 | 2,653,945 | 2005 | 2,611,616 | 2004 | 2,581,066 | 2003 | 2,562,160 | 2002 | 2,565,849 | 2001 | 2,585,870 | 2000 | 2,630,474 | 1999 | 2,729,929 | 1998 | 2,902,992 | 1997 | 3,143,996 | 1996 | 3,421,536 | 1995 | 3,695,052 | 1994 | 3,934,950 | 1993 | 4,141,556 | 1992 | 4,294,387 | 1991 | 4,389,117 | 1990 | 4,449,800 | 1989 | 4,501,705 | 1988 | 4,538,852 | 1987 | 4,532,507 | 1986 | 4,464,099 | 1985 | 4,338,437 | 1984 | 4,177,246 | 1983 | 3,982,474 | 1982 | 3,762,782 | 1981 | 3,538,240 | 1980 | 3,325,931 | 1979 | 3,129,916 | 1978 | 2,959,910 | 1977 | 2,821,682 | 1976 | 2,711,730 | 1975 | 2,631,426 | 1974 | 2,573,648 | 1973 | 2,525,797 | 1972 | 2,480,113 | 1971 | 2,428,086 | 1970 | 2,367,141 | 1969 | 2,301,610 | 1968 | 2,238,449 | 1967 | 2,181,882 | 1966 | 2,130,986 | 1965 | 2,087,226 | 1964 | 2,050,793 | 1963 | 2,016,090 | 1962 | 1,978,014 | 1961 | 1,935,905 | 1960 | 1,888,443 |
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