During the last three decades the total income per year for all Danish museums (museums subsidized with state funding according to the Danish Museum Law) has changed from 121 million euro to 361 million euro (in fixed prices 2021 level). This impressing growth is not a result of public spending (funding from state and municipality). Instead, it is a result of a dramatic change in the total income from other sources such as tickets, purchase of goods in the museum shop etc. as well as private foundations. (...)