| Year | Value | | 2022 | 2,051,084 | | 2021 | 2,040,811 | | 2020 | 1,973,434 | | 2019 | 1,853,951 | | 2018 | 1,728,579 | | 2017 | 1,594,258 | | 2016 | 1,452,111 | | 2015 | 1,361,020 | | 2014 | 1,333,434 | | 2013 | 1,318,679 | | 2012 | 1,315,841 | | 2011 | 1,338,330 | | 2010 | 1,370,201 | | 2009 | 1,390,818 | | 2008 | 1,405,289 | | 2007 | 1,425,010 | | 2006 | 1,447,789 | | 2005 | 1,468,240 | | 2004 | 1,478,223 | | 2003 | 1,479,381 | | 2002 | 1,474,508 | | 2001 | 1,463,111 | | 2000 | 1,451,267 | | 1999 | 1,441,872 | | 1998 | 1,438,937 | | 1997 | 1,439,457 | | 1996 | 1,444,914 | | 1995 | 1,453,059 | | 1994 | 1,406,780 | | 1993 | 1,294,699 | | 1992 | 1,160,222 | | 1991 | 1,004,999 | | 1990 | 852,165 | | 1989 | 819,400 | | 1988 | 899,358 | | 1987 | 1,003,013 | | 1986 | 1,116,392 | | 1985 | 1,216,569 | | 1984 | 1,260,544 | | 1983 | 1,259,817 | | 1982 | 1,254,084 | | 1981 | 1,251,625 | | 1980 | 1,250,013 | | 1979 | 1,241,323 | | 1978 | 1,231,346 | | 1977 | 1,225,084 | | 1976 | 1,221,964 | | 1975 | 1,213,414 | | 1974 | 1,199,588 | | 1973 | 1,182,524 | | 1972 | 1,161,855 | | 1971 | 1,140,830 | | 1970 | 1,119,350 | | 1969 | 1,099,745 | | 1968 | 1,085,303 | | 1967 | 1,066,313 | | 1966 | 1,039,853 | | 1965 | 1,016,373 | | 1964 | 998,418 | | 1963 | 980,972 | | 1962 | 968,004 | | 1961 | 957,247 | | 1960 | 949,587 |
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