Fatalities have been averaging about 43.6 per year. Last 2007-2008 season there was a spike to 53 fatalities but the previous 2006-2007 season had abnormally low 22 fatalities. Note this does not include fatalities due to Avalanches.
Some other facts from the report:
For those who die while wearing a helmet, only about one-third have a head injury as the first cause of death. It seems that while the use of a helmet may shift the distribution of the first cause of death, it is not sufficient to reduce the overall rate of death. In incidents leading to death, it appears that the severity of the incident simply overwhelms the ability of the helmet to prevent death."
"Unfortunately, at the same time that knee injuries are starting to decline, we are now seeing an increase in both mid-shaft tibial fractures and injuries due to inadvertent releases, many of which would be preventable if skiers were more attentive to taking their skis into a qualified ski shop for an annual inspection and readjustment as needed."