Year | Value | 2022 | 59,714 | 2021 | 62,302 | 2020 | 64,897 | 2019 | 67,534 | 2018 | 68,799 | 2017 | 69,067 | 2016 | 69,440 | 2015 | 69,054 | 2014 | 68,118 | 2013 | 66,641 | 2012 | 64,477 | 2011 | 61,942 | 2010 | 59,435 | 2009 | 57,220 | 2008 | 55,510 | 2007 | 54,401 | 2006 | 53,512 | 2005 | 52,490 | 2004 | 51,316 | 2003 | 50,102 | 2002 | 49,123 | 2001 | 48,906 | 2000 | 49,732 | 1999 | 51,303 | 1998 | 53,236 | 1997 | 55,245 | 1996 | 56,932 | 1995 | 57,984 | 1994 | 58,395 | 1993 | 58,108 | 1992 | 57,103 | 1991 | 55,737 | 1990 | 54,582 | 1989 | 53,948 | 1988 | 53,470 | 1987 | 52,692 | 1986 | 51,589 | 1985 | 50,058 | 1984 | 48,060 | 1983 | 46,012 | 1982 | 44,215 | 1981 | 42,476 | 1980 | 40,609 | 1979 | 38,678 | 1978 | 36,808 | 1977 | 35,046 | 1976 | 33,408 | 1975 | 31,896 | 1974 | 30,512 | 1973 | 29,314 | 1972 | 28,317 | 1971 | 27,504 | 1970 | 26,927 | 1969 | 26,662 | 1968 | 26,553 | 1967 | 26,413 | 1966 | 26,249 | 1965 | 26,096 | 1964 | 26,009 | 1963 | 26,056 | 1962 | 26,232 | 1961 | 26,440 | 1960 | 26,503 |
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