In 1981, eight Japanese climbers died after a successful ascent.
In 1981, eight Japanese climbers died after a hiking all the way to the top.
This year, although five climbers died on Everest, 90 people reached the top, 40 in a single day.
Both climbers died of cold after 10 days exposure.
However, one climber died on May 5 when she fell between camps 4 and 5.
"More climbers die during the descent than on the way up."
Last spring, 12 climbers died and 84 reached the summit-a ratio of one in seven.
Since 1987, 67 climbers have died, park officials said.
Three British climbers died on the route the week before he began his ascent.
First attempt abandoned when a climber fell ill and died at 6200m.