| Year | Value | | 2022 | 1,335,935 | | 2021 | 1,348,184 | | 2020 | 1,391,102 | | 2019 | 1,441,617 | | 2018 | 1,495,034 | | 2017 | 1,541,424 | | 2016 | 1,567,358 | | 2015 | 1,575,812 | | 2014 | 1,574,368 | | 2013 | 1,559,388 | | 2012 | 1,539,189 | | 2011 | 1,528,932 | | 2010 | 1,517,384 | | 2009 | 1,499,082 | | 2008 | 1,469,990 | | 2007 | 1,436,065 | | 2006 | 1,392,709 | | 2005 | 1,344,689 | | 2004 | 1,298,554 | | 2003 | 1,256,496 | | 2002 | 1,221,762 | | 2001 | 1,197,158 | | 2000 | 1,182,116 | | 1999 | 1,192,690 | | 1998 | 1,207,077 | | 1997 | 1,230,731 | | 1996 | 1,261,888 | | 1995 | 1,304,811 | | 1994 | 1,359,730 | | 1993 | 1,422,500 | | 1992 | 1,490,777 | | 1991 | 1,557,618 | | 1990 | 1,612,292 | | 1989 | 1,647,277 | | 1988 | 1,660,859 | | 1987 | 1,663,207 | | 1986 | 1,658,850 | | 1985 | 1,641,850 | | 1984 | 1,609,859 | | 1983 | 1,574,903 | | 1982 | 1,534,986 | | 1981 | 1,477,895 | | 1980 | 1,381,074 | | 1979 | 1,263,502 | | 1978 | 1,152,168 | | 1977 | 1,044,916 | | 1976 | 963,110 | | 1975 | 940,256 | | 1974 | 963,337 | | 1973 | 991,477 | | 1972 | 1,023,988 | | 1971 | 1,057,332 | | 1970 | 1,085,238 | | 1969 | 1,101,972 | | 1968 | 1,110,416 | | 1967 | 1,121,747 | | 1966 | 1,136,073 | | 1965 | 1,158,665 | | 1964 | 1,181,930 | | 1963 | 1,197,262 | | 1962 | 1,200,692 | | 1961 | 1,194,683 | | 1960 | 1,192,680 |
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