Rate of injuries and illnesses per 100 full-time employees, utilities industry and its components, 2003 and 2004 Rate of injuries and illnesses per 100 full-time employees Industry 2003 2004 All utilities 4.4 5.2 Electric power generation, transmission and distribution 4.1 4.5 Natural gas distribution 4.8 7.3 Water, sewage, and other systems 6.6 6.0