Museums: Collections per museum during the year

The dataset contains the total receipts recorded in the museums based in Milan in the decade 2007-2017. The collection data are collected by total year. For each museum is indicated the type of admission (free or payment) for the specific year. If a given data for a single museum is not present in the resource for the specific year, it is to be considered as data not received.
The dataset in question refers to visitors registered in the same time period and listed in the DS575 dataset reachable at https://dati.comune.milano.it/dataset/66429186-3eb3-460b-9aea-7eeb3f5917fe