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Everest 1922-2006 - oxygen, success and fatilities
Age Attempts Success Attempt Success Rate Fatalities Attempt Fatality Rate Summiteer Fatalities Summiteer Fatality Rate
No Oxygen 759 144 18.97% 29 3.82% 11 7.64%
Oxygen 10094 2972 29.44% 207 2.05% 54 1.82%