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Everest 1922 - 2006 Age, Success and Fatalities

Important note! A sample size should not be less than 10-20 climbers to be relevant. All Blue values are statistically insignificant and should be avoided. Red values have a high degree of reliability.
ALL CLIMBERS   NON PORTER NATIONS (EXCLUDING CHINA, NEPAL, INDIA)
Age Attempts Success Attempt Success Rate Fatalities Attempt Fatality Rate Summiteer Fatalities Summiteer Fatality Rate   Attempts Success Attempt Success Rate Fatalities Attempt Fatality Rate Summiteer Fatalities Summiteer Fatality Rate
0-100 10094 2972 29.44% 207 2.05% 54 1.82%   7740 1549 20.01% 104 1.34% 39 2.52%
                             
2 Age Groups                              
0-39 6515 2244 34.44% 113 1.73% 36 1.60%   4797 1002 20.89% 66 1.38% 25 2.50%
40-100 3116 695 22.30% 47 1.51% 16 2.30%   2672 543 20.32% 35 1.31% 14 2.58%
No Available Age 463 33 7.13% 47 10.15% 2 6.06%   271 4 1.48% 3 1.11% 0 0.00%
                             
4 Age Groups                              
0-29 2420 906 37.44% 45 1.86% 13 1.43%   1588 268 16.88% 19 1.20% 7 *
30-39 4095 1338 32.67% 68 1.66% 23 1.72%   3209 734 22.87% 47 1.46% 18 2.45%
40-49 2111 559 26.48% 31 1.47% 11 1.97%   1883 412 21.88% 22 1.17% 9 *
50-74 1005 136 13.53% 16 1.59% 5 *   789 131 16.60% 13 1.65% 5 *
No Available Age 463 33 7.13% 47 10.15% 2 6.06%   271 4 1.48% 3 1.11% 0 0.00%
                             
*insufficient sample size                            
                             
                             
GENERAL ANNUAL DEATH RATE USA 1996                          
AGE                              
15-24 0.1%                            
25-34 0.1%                            
35-44 0.2%                            
45-54 0.4%                            
55-64 1.1%                            
65-74 2.5%                            

 

 

CONCLUSIONS

ALL CLIMBERS

  • Everest has been attempted 11000 times
  • 3000 attempts have been successful (reached the summit)
  • Success rate is 29%
  • 207 climbers have died on Everest
  • Fatality rate is 2.05%
  • 54 of the summiteers died
  • Summit to Fatality rate is 1.82%

    NON PORTER NATIONS (EXCLUDING CHINA, NEPAL, INDIA)

  • Everest has been attempted 7700 times
  • 1600 attempts have been successful (reached the summit)
  • Success rate is 20%
  • 104 climbers have died on Everest
  • Fatality rate is 1.34%
  • 39 of the summiteers died
  • Summit to Fatality rate is 2.52%

    EVEREST AND AGE OVERALL

  • The Attempt to Fatality rate does not significantly vary with age. 0-29y = 1.9%, 30-39y = 1.7%, 40-49y = 1.5%, 50-100y = 1.6%.
  • The summit to Fatality rate does vary slightly when porters are included in statistics. Age below 40 = 1.6%, Age 40 and above = 2.3%

    EVEREST AND AGE (EXCLUDING CHINA, NEPAL, INDIA)

  • Climbing porters have a higher success rate than non porters. The porters are younger than the general Everest population. Porters thus have to be excluded when further comparing age.
  • The success rate for climbers (non porter nations) does not vary with age. Climbers below 40 years have a success rate of 20.9%, Climbers 40 years and above have a success rate of 20.3%
  • The summit to Fatality rate does not vary with age. Climbers below 40 have a Summit to Fatality rate of 2.5%. Climbers 40 years and above have 2.6%
  • The Attempt to Fatality rate does not vary with age. Climbers below 40 have an Attempt to Fatality rate of 1.4%. Climbers 40 years and above have an Attempt to Fatality rate of 1.3%