Per month visitors are being registered with the amount of nights they have reserved and the countries these visitors come from. After check out these will be calculated in the month of the end date of the reservation. So a reservation from 27 January to 5 February will be, after check out, registered in the month February.
This data you can for example use for the return to the CBS.
In order to look at the visitor numbers:
1. Go to the tab Statistics;
2. Click on Visits;
3. Select arrival/departure and the desired month.