Campaign figures
An ALHI note updated for 2023 said GMID 2022 garnered more than 40 million impressions and reached more than 8.5 million users. Those are campaign numbers. They are useful as a measure of how loudly the coalition talked. They are not an audited circulation of the meetings industry.
When a later year publishes a new figure, read it the same way: as outreach, not as attendance at every breakfast on earth.