I want to know the answer to the following question:
How many 400+ foot skyscrapers have been built or are in the process of being built in Miami since 2001?
All the background I'm provided with is that "Since 2001, Miami has been undergoing a large building boom with more than 50 skyscrapers rising over 400 feet (122 m) built or currently under construction in the city.". Is that enough to answer the question?