Lost workday case incidence rates, injuries and ilnesses, 1990-97 Year Lost Cases with Cases with days workday days away of restricted cases from work work activity only 1990 4.1 3.4 0.7 1991 3.9 3.2 0.7 1992 3.9 3.0 0.8 1993 3.8 2.9 0.9 1994 3.8 2.8 1.0 1995 3.6 2.5 1.1 1996 3.4 2.2 1.1 1997 3.3 2.1 1.2