Chinese climbers who were stranded in Kathmandu due to coronavirus disease (COVID-19) restrictions on travel, sit inside a hotel lobby, Nepal June 17, 2021. Picture taken June 17, 2021. REUTERS/Navesh Chitrakar

Chinese climber Sun Yi Quan (R) along with expedition leader Zhang Wei who were stranded in Kathmandu due to coronavirus disease (COVID-19) restrictions on travel, pose for a picture after an interview, Nepal June 17, 2021. Picture taken June 17, 2021. REUTERS/Navesh Chitrakar

Hong Kong's record-breaking climber Tsang Yin-Hung who was stranded in Kathmandu due to coronavirus disease (COVID-19) restrictions on travel, poses for a picture after an interview, Nepal June 17, 2021. Picture taken June 17, 2021. REUTERS/Navesh Chitrakar

A helicopter leaves after transporting the body of American climber Puwei Liu, who died during his descent from Mount Everest, in Kathmandu, Nepal May 30, 2021. REUTERS/Navesh Chitrakar

The body of American climber Puwei Liu, who died during his descent from Mount Everest, lies on the ground after being airlifted from Mount Everest to Kathmandu, Nepal May 30, 2021. REUTERS/Navesh Chitrakar

The body of American climber Puwei Liu, who died during his descent from Mount Everest, lies on the ground after being airlifted from Mount Everest to Kathmandu, Nepal May 30, 2021. REUTERS/Navesh Chitrakar REFILE - QUALITY REPEAT

The body of American climber Puwei Liu, who died during his descent from Mount Everest, is carried to an ambulance after being airlifted from Mount Everest to Kathmandu, Nepal May 30, 2021. REUTERS/Navesh Chitrakar

Hong Kong's Tsang Yin-Hung, 45, who scaled Mount Everest in less than 26 hours, the shortest time taken by any woman after starting from the base camp, is offered a ceremonial scarf upon her arrival after climbing Everest, in Kathmandu, Nepal May 30, 2021. REUTERS/Navesh Chitrakar

Hong Kong's Tsang Yin-Hung, 45, (C), who scaled Mount Everest in less than 26 hours, the shortest time taken by any woman after starting from the base camp, waves for a picture along with her team members, upon her arrival after climbing Everest, in Kathmandu, Nepal May 30, 2021. REUTERS/Navesh Chitrakar

Hong Kong's Tsang Yin-Hung, 45, who scaled Mount Everest in less than 26 hours, the shortest time taken by any woman after starting from the base camp, smiles as she poses for a picture upon her arrival after climbing Everest, in Kathmandu, Nepal May 30, 2021. REUTERS/Navesh Chitrakar

Hong Kong's Tsang Yin-Hung, 45, who scaled Mount Everest in less than 26 hours, the shortest time taken by any woman after starting from the base camp, waves for a picture upon her arrival after climbing Everest, in Kathmandu, Nepal May 30, 2021. REUTERS/Navesh Chitrakar

Arthur Muir, 75, who became the oldest American to climb the world?s highest peak at 8,848.86-meters (29,031 feet) speaks with the media personal upon his arrival after climbing Everest, in Kathmandu, Nepal May 30, 2021. REUTERS/Navesh Chitrakar

Arthur Muir, 75, who became the oldest American to climb the world?s highest peak at 8,848.86-meters (29,031 feet), speaks with the media personal upon his arrival after climbing Everest, in Kathmandu, Nepal May 30, 2021. REUTERS/Navesh Chitrakar

Nepal's Caretaker Prime Minister Khadga Prasad Sharma Oli, also known as K.P. Oli, sits in front of the picture of Mount Everest as he speaks with the media during a news conference, after the president dissolved the parliament and fixed general elections in November amid a worsening coronavirus disease (COVID-19) outbreak, in Kathmandu, Nepal May 27, 2021. REUTERS/Navesh Chitrakar

Nepal's Caretaker Prime Minister Khadga Prasad Sharma Oli, also known as K.P. Oli, sits in front of the picture of Mount Everest as he speaks with the media during a news conference, after the president dissolved the parliament and fixed general elections in November amid a worsening coronavirus disease (COVID-19) outbreak, in Kathmandu, Nepal May 27, 2021. REUTERS/Navesh Chitrakar

Kami Rita Sherpa, 51, a Nepali mountaineer, walks from a vehicle upon his arrival after climbing Mount Everest for the 25th time, creating a record for the most summits of the world's highest mountain, in Kathmandu, Nepal May 25, 2021. REUTERS/Navesh Chitrakar

Kami Rita Sherpa, 51, a Nepali mountaineer, wearing face coverings is pictured upon his arrival after climbing Mount Everest for the 25th time, creating a record for the most summits of the world’s highest mountain, in Kathmandu, Nepal May 25, 2021. REUTERS/Navesh Chitrakar

Kami Rita Sherpa, 51, a Nepali mountaineer, is offered a ceremonial scarf by his wife Lakpa Jangmu Sherpa upon his arrival after climbing Mount Everest for the 25th time, creating a record for the most summits of the world?s highest mountain, in Kathmandu, Nepal May 25, 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

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