U.S. Dept. of Labor, Bureau of Labor Statistics
2000-
Bulletin / Bureau of Labor Statistics
3100-72, 3105-57, 3110-16, 3115-02, 3120-13, 3125-03, 3130-16, 3135-09
Oct. 1999 , June 2000 , Dec. 2000 , Jan. 2002 , Jan. 2003 , Jan. 2004 , Jan. 2005 , Dec. 2005
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