Table 1

Grooming hours, injury rate, and injury severity score (ISS) in Hafjell alpine ski area from 1991 through 1996

Lift journeysNumber of injuriesGrooming hours*Injury rate per 1000 skier daysTotal ISSMean ISS per year
*The exact number of grooming hours was not recorded in the period 1991–1993.
1991770672862.23183.7
19921273812971.53373.6
199317097671782.15523.1
1994218976424325672.26802.8
1995232144628022332.46742.8
1996231787431219122.77802.5