Most excellent report at the link:
- To date there are 317 privately founded contemporary art museums in the world.
- The top 5 ranks by number of museums are held by South Korea, the United States, Germany, followed by China and Italy.
- The South Korean city of Seoul leads the ranking with 13 museums, followed by Berlin and Beijing with 9 each.
- The average size of a private museum is about 3,400square-meter.
- More than one third (35%) of private museums have over 20,000 visitors per year.
- The average age of a private museum founder is 65.
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