Annual evolution of the number of gym members in Spain from 2015 to 2022 (in millions)

Statista90

Frequent Flyer Money Saver results for the economy and business class flights on Turkish Airlines obtained for the 3th week of November 2017.

NIAID Data Ecosystem80

Redeemed flight awards as a share of revenue passenger miles flown at Southwest Airlines from 2018 to 2024

Statista50

Number of Qantas Frequent Flyer members 2018-2024

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