The baseline volumes that AI-era percentages are percentages of.
A percentage without a denominator is a talking point rather than a number. This section carries the official statistics that give the rest of the observatory its scale.
All of it comes from official statistical sources: Eurostat for European accommodation and platform-economy nights, UN Tourism and the OECD for international arrivals. These series have published methods, stated revision policies and known lags — which is why they are months behind the survey data and more trustworthy than it.
Where a figure is experimental, such as Eurostat's platform-economy statistics, we say so on the indicator page.
Spain recorded 93.8 million international arrivals in 2024, up 10.09%. It is the highest 2024 figure in this dataset, but not the world's highest: UN Tourism ranks France first at roughly 102 million, and France has no 2024 entry in the series used here.
