The numbers in the list represent switched traffic only (no private interconnects) and are rounded to whole gigabits.
Take into consideration that traffic on each exchange point can change quickly, and be seasonal.
This list is not exhaustive, as it includes only exchanges willing to make traffic data public on their website.
Examples of large peering points without public data are NAP of the Americas or PacketExchange.
For example, as of 2024, the top two entries each contained data for about 40 separate locations, in one case on four different continents.