Qatari national Sheikha Asma Al Thani, aiming to become the first Qatari woman to climb Mount Everest, poses for a picture after her arrival in Kathmandu, Nepal April 1, 2021. REUTERS/Navesh Chitrakar

Qatari national Sheikha Asma Al Thani, aiming to become the first Qatari woman to climb Mount Everest, poses for a picture after her arrival in Kathmandu, Nepal April 1, 2021. REUTERS/Navesh Chitrakar

Sheikh Mohamed Hamad Mohamed Al Khalifa takes a PCR test before leaving for the expedition to Everest in Kathmandu, Nepal March 19, 2021. REUTERS/Navesh Chitrakar

Bahrain climbers maintain social distance as they wait to take a PCR test before leaving for the expedition to Everest in Kathmandu, Nepal March 19, 2021. REUTERS/Navesh Chitrakar

A Bahrain climber waits to take a PCR test before leaving for the expedition to Everest in Kathmandu, Nepal March 19, 2021. REUTERS/Navesh Chitrakar

Sheikh Mohamed Hamad Mohamed Al Khalifa takes a PCR test before leaving for the expedition to Everest in Kathmandu, Nepal March 19, 2021. REUTERS/Navesh Chitrakar

Cumbres diarias al monte Everest

La saison d'escalade au printemps commence fin avril et atteint son pic la dernière semaine de mai.

People work to pack food before sending it to Everest base camp for the upcoming climbing season, as the world's tallest peak reopens after a year closed due to the coronavirus pandemic in Kathmandu, Nepal March 15, 2021. REUTERS/Navesh Chitrakar

A man labels a package containing food before sending it to Everest base camp for the upcoming climbing season, as the world's tallest peak reopens after a year closed due to the coronavirus pandemic in Kathmandu, Nepal March 15, 2021. REUTERS/Navesh Chitrakar

Mountaineers look to buy mountain gear while preparing for the upcoming Everest climbing season, as the world's tallest peak reopens after a year closed due to the coronavirus pandemic in Kathmandu, Nepal March 15, 2021. REUTERS/Navesh Chitrakar

Workers dismantle a tent before sending it to Everest base camp for the upcoming climbing season, as the world's tallest peak reopens after a year closed due to the coronavirus pandemic in Kathmandu, Nepal March 15, 2021. REUTERS/Navesh Chitrakar

The spring climbing season begins in late April and peaks in the last week of May.

A woman works at the fungi farm of the Everest Agricultural Investment Fund in Shigatse, during a government-organised tour of the Tibet Autonomous Region, China, October 17, 2020. Picture taken October 17, 2020. REUTERS/Thomas Peter

People work at the fungi farm of the Everest Agricultural Investment Fund in Shigatse, during a government-organised tour of the Tibet Autonomous Region, China, October 17, 2020. Picture taken October 17, 2020. REUTERS/Thomas Peter

A worker is seen at the fungi farm of the Everest Agricultural Investment Fund in Shigatse, during a government-organised tour of the Tibet Autonomous Region, China, October 17, 2020. Picture taken October 17, 2020. REUTERS/Thomas Peter

People pick mushrooms at the fungi farm of the Everest Agricultural Investment Fund in Shigatse, during a government-organised tour of the Tibet Autonomous Region, China, October 17, 2020. Picture taken October 17, 2020. REUTERS/Thomas Peter

Men work in the fungi farm of the Everest Agricultural Investment Fund in Shigatse, during a government-organised tour of the Tibet Autonomous Region, China, October 17, 2020. Picture taken October 17, 2020. REUTERS/Thomas Peter

Men work in the fungi farm of the Everest Agricultural Investment Fund in Shigatse, during a government-organised tour of the Tibet Autonomous Region, China, October 17, 2020. Picture taken October 17, 2020. REUTERS/Thomas Peter

Women take part in a funeral procession of Ang Rita Sherpa also known as the ?snow leopard? for his climbing skills, who climbed Everest 10 times without the use of supplement oxygen, in Kathmandu, Nepal September 23, 2020. REUTERS/Navesh Chitrakar

Members of Armed Police Force provides national honor to Ang Rita Sherpa also known as the ?snow leopard? for his climbing skills, who climbed Everest 10 times without the use of supplement oxygen, during his funeral procession in Kathmandu, Nepal September 23, 2020. REUTERS/Navesh Chitrakar

Family members and supporters take part in a funeral procession of Ang Rita Sherpa also known as the ?snow leopard? for his climbing skills, who climbed Everest 10 times without the use of supplement oxygen, in Kathmandu, Nepal September 23, 2020. REUTERS/Navesh Chitrakar

Body of Ang Rita Sherpa also known as the ?snow leopard? for his climbing skills, who climbed Everest 10 times without the use of supplement oxygen, is taken for cremation during his funeral procession in Kathmandu, Nepal September 23, 2020. REUTERS/Navesh Chitrakar

Body of Ang Rita Sherpa also known as the ?snow leopard? for his climbing skills, who climbed Everest 10 times without the use of supplement oxygen, is taken for cremation during his funeral procession in Kathmandu, Nepal September 23, 2020. REUTERS/Navesh Chitrakar

Buddhist monks wearing face masks offer prayer during the funeral procession of Ang Rita Sherpa, the first man to climb Mount Everest 10 times without the use of supplement oxygen, who was also known as the "snow leopard", in Kathmandu, Nepal, September 23, 2020. REUTERS/Navesh Chitrakar TPX IMAGES OF THE DAY

Family members and supporters take part in a funeral procession of Ang Rita Sherpa also known as the “snow leopard” for his climbing skills, who climbed Everest 10 times without the use of supplement oxygen, in Kathmandu, Nepal September 23, 2020. REUTERS/Navesh Chitrakar

A family member offers a butter lamp near the body of Ang Rita Sherpa, also known as the ?snow leopard? for his climbing skills, who climbed Everest 10 times without the use of supplement oxygen, inside a Sherpa Monastery in Kathmandu, Nepal September 22, 2020. REUTERS/Navesh Chitrakar

A family member places an offering near the body of Ang Rita Sherpa, also known as the “snow leopard” for his climbing skills, who climbed Everest 10 times without the use of supplement oxygen, inside a Sherpa Monastery in Kathmandu, Nepal September 22, 2020. REUTERS/Navesh Chitrakar

A man pays his respects to the body of Ang Rita Sherpa, also known as the ?snow leopard? for his climbing skills, who climbed Everest 10 times without the use of supplement oxygen, inside a Sherpa Monastery in Kathmandu, Nepal September 22, 2020. REUTERS/Navesh Chitrakar

Halung Dorchi Sherpa, Pasang Nurbu Sherpa, Ming Temba Sherpa and Tashi Lakpa Sherpa attend a news conference organised before heading to attempt the record for the winter Everest expedition in 5 days, in Kathmandu, Nepal February 24, 2020. REUTERS/Navesh Chitrakar

Ming Temba Sherpa, Halung Dorchi Sherpa, Tashi Lakpa Sherpa and Pasang Nurbu Sherpa pose for a group photo ahead of the news conference organised before heading to attempt the record for the winter Everest expedition in 5 days, in Kathmandu, Nepal February 24, 2020. REUTERS/Navesh Chitrakar

Halung Dorchi Sherpa, Pasang Nurbu Sherpa, Ming Temba Sherpa and Tashi Lakpa Sherpa attend a news conference organised before heading to attempt the record for the winter Everest expedition in 5 days, in Kathmandu, Nepal February 24, 2020. REUTERS/Navesh Chitrakar

Mount Everest, the world highest peak, and other peaks of the Himalayan range are seen through an aircraft window during a mountain flight from Kathmandu, Nepal January 15, 2020. REUTERS/Monika Deupala

Mount Everest, the world highest peak, and other peaks of the Himalayan range are seen through an aircraft window during a mountain flight from Kathmandu, Nepal January 15, 2020. REUTERS/Monika Deupala

Datos analizados por Reuters muestran el tráfico a la cumbre, con un récord de 344 personas que alcanzaron la cima del Everest el 23 de mayo.

Cada cima está representada por un triángulo. El número total de escaladores muertos corresponde al tamaño de la montaña. La tasa de mortalidad, o el número de escaladores que han muerto como proporción de los que han hecho cima, se muestra por color.

CORRECTION corrects number of people who have climbed Ngadi Chuli to 98 in story, corrects description of first chart to clarify deaths from all Himalayan mountains included Interactive graphic showing fatalities in the Himalayas during the spring climbing season, 2019. Includes detail on daily summits and weather patterns. Changes cover image at top of page to picture that shows Everest, corrects number of people who have climbed Ngadi Chuli to 98 in story, corrects description of first chart to clarify deaths from all Himalayan mountains included embed code and instructions: https://reut.rs/2PBDZsx

Graphic showing how many climbers died on each mountain and the Himalayas. Includes detail on the ratio of deaths to summits, indicating which are the most dangerous mountains.

Charts visualising showing daily summits on Mount Everest. Indicates the "weather window" in May where climbers can reach the top.

Workers from a recycling company dump garbage collected and brought from Mount Everest out of a bag, in Kathmandu, Nepal June 5, 2019. REUTERS/Navesh Chitrakar

Workers from a recycling company load the garbage collected and brought from Mount Everest in Kathmandu, Nepal June 5, 2019. REUTERS/Navesh Chitrakar

Workers from a recycling company display the garbage collected and brought from Mount Everest in Kathmandu, Nepal June 5, 2019. REUTERS/Navesh Chitrakar

A man stands in front of the garbage collected and brought from Mount Everest to recycle in Kathmandu, Nepal June 5, 2019. REUTERS/Navesh Chitrakar

Workers from a recycling company load the garbage collected and brought from Mount Everest in Kathmandu, Nepal June 5, 2019. REUTERS/Navesh Chitrakar

Charts number of successful ascents to Mount Everest and deaths from expeditions.

People pay homage in front of a portrait of Dipankar Ghosh, a 52-year-old Indian photographer who scaled the world's fifth-highest peak, the snow-capped Mount Makalu, before his funeral in Howrah district in the eastern state of West Bengal, India May 29, 2019. Picture taken May 29, 2019. REUTERS/Rupak De Chowdhuri

Malay Mukherjee, a veteran Indian climber, trains with other climbers at a park in Howrah district in the eastern state of West Bengal, India May 29, 2019. Picture taken May 29, 2019. REUTERS/Rupak De Chowdhuri

People light candles during a prayer service for those who died on Mount Everest during expeditions as they celebrate Everest Day in Kolkata, India, May 29, 2019. Picture taken May 29, 2019. REUTERS/Rupak De Chowdhuri

Cadets from the National Cadet Corps (NCC) carry a coffin containing the remains of Dipankar Ghosh, a 52-year-old Indian photographer who scaled the world's fifth-highest peak, the snow-capped Mount Makalu, in Howrah district in the eastern state of West Bengal, India May 29, 2019. Picture taken May 29, 2019. REUTERS/Rupak De Chowdhuri

Malay Mukherjee, a veteran Indian climber, speaks with Reuters during his training session at a park in Howrah district in the eastern state of West Bengal, India May 29, 2019. Picture taken May 29, 2019. REUTERS/Rupak De Chowdhuri

Minister for Information and Communication Technology Gokul Prasad Baskota along with the daughter of Edmund Hillary, Sarah Hillary offer garland to the statues of Edmund Hillary and Tenzing Norgay Sherpa, the first mountaineers to conquer Mount Everest in 1953, during the anniversary of their ascent as well as to mark the International Everest day in Kathmandu, Nepal May 29, 2019. REUTERS/Navesh Chitrakar

Sherpa women in traditional attire pose for a picture during the anniversary of Edmund Hillary and Tenzing Norgay Sherpa's ascent of Mount Everest in 1953 as well as to mark the International Everest day in Kathmandu, Nepal May 29, 2019. REUTERS/Navesh Chitrakar

A man cleans the area near the statues of Edmund Hillary and Tenzing Norgay Sherpa, the first mountaineers to conquer Mount Everest in 1953, during the anniversary of their ascent as well as the International Everest day in Kathmandu, Nepal May 29, 2019. REUTERS/Navesh Chitrakar

A man wearing a t-shirt that reads "Our Priority Clean Sagarmatha (Mount Everest in Nepali)" during the anniversary of Edmund Hillary and Tenzing Norgay Sherpa's assent of Mount Everest in 1953 as well as to mark the International Everest day in Kathmandu, Nepal May 29, 2019. REUTERS/Navesh Chitrakar

Nirmal Purja, attempting a record to climb fourteen 8000-meter mountain peaks in seven months speaks during a news conference after climbing six mountains including Mt. Everest in Kathmandu, Nepal May 28, 2019. REUTERS/Navesh Chitrakar

Nirmal Purja, attempting a record to climb fourteen 8000-meter mountain peaks in seven months speaks during a news conference after climbing six mountains including Mt. Everest in Kathmandu, Nepal May 28, 2019. REUTERS/Navesh Chitrakar

Kami Rita Sherpa, 49, a Nepali mountaineer, waves towards media personnel upon his arrival after climbing Mount Everest for the 24th time, creating a new record for the most summits of the worldÕs highest mountain, in Kathmandu, Nepal May 25, 2019. REUTERS/Navesh Chitrakar TPX IMAGES OF THE DAY

Kami Rita Sherpa, 49, a Nepali mountaineer, performs a religious ritual upon his arrival after climbing Mount Everest for the 24th time, creating a new record for the most summits of the worldÕs highest mountain, in Kathmandu, Nepal May 25, 2019. REUTERS/Navesh Chitrakar

Kami Rita Sherpa, 49, a Nepali mountaineer, waves towards media personnel upon his arrival after climbing Mount Everest for the 24th time, creating a new record for the most summits of the worldÕs highest mountain, in Kathmandu, Nepal May 25, 2019. REUTERS/Navesh Chitrakar

Kami Rita Sherpa, 49, a Nepali mountaineer, waves towards media personnel upon his arrival after climbing Mount Everest for the 24th time, creating a new record for the most summits of the worldÕs highest mountain, in Kathmandu, Nepal May 25, 2019. REUTERS/Navesh Chitrakar