Link to Series in Level 1 Subscription Site
Link to Series in Level 2 Subscription Site
Link to Series in Level 0 Subscription Site
1970 01 635388.
1971 01 975517.
1972 01 285601.
1973 01 95765·
1974 01 155891.
1975 01 275866.
1976 01 255946.
1977 01 206000.
1978 01 36038.
1979 01 246111·
1980 01 916284·
1981 01 986416·
1982 01 766415·
1983 01 706300.
1984 01 406494.
1985 01 886697.
1986 01 106984·
1987 01 717142.
1988 01 97413.
1989 01 597734·
1990 01 57877.
1991 01 607698.
1992 01 617660.
1993 01 47699·
1994 01 877942.
1995 01 928256·
1996 01 858364·
1997 01 438444·
1998 01 68618·
1999 01 508762.
2000 01 938989·
2001 01 219088·
2002 01 379271·
2003 01 399485·
2004 01 239662·
2005 01 69998·
2006 01 8110257.
2007 01 9310576.
2008 01 3810873·
2009 01 9210953·
2010 01 6311247·
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