Bureau of Justice Statistics (BJS) published statistical data regarding workplace violence.  The abstract, highlights, PDF of the final report, ASCII file, as well as the data spreadsheet are available here.

Presents information on violence in the workplace against employed persons based on the Bureau of Justice Statistics’ National Crime Victimization Survey and the Bureau of Labor Statistics’ Census of Fatal Occupational Injuries. This report includes both nonfatal and fatal forms of violence. Comparisons are made with violence against unemployed persons and violence against employed persons outside of the workplace. Information on type of workplace violence is included. Also discussed is violence by occupation as well as information on victim and crime characteristics such as gender and race distribution, offender weapon use, police notification, and victim injury.