What?
What is that?
Another bubble which will burst.
The only thing government consistently does well is look after its own interests.
Not to quibble, but I wonder how much gentrification affects these numbers. Yes, the DC metro area is the Land of Oz, etc., but still: the graphs say the numbers are for the District of Columbia, and DC is changing fast. I live on Capitol Hill, which was the wild, wild east when I moved here 34 years ago. It has now become a destination neighborhood. Right nearby, neighborhoods like Trinidad, Old City, Ivy City, the Anacostia waterfront, and big parts of Anacostia are flipping. The same is true across much of the city. The downtown is unrecognizable if you've not been here for 20 years. We even have a few public schools, but a growing number, which have become highly sought after and quite competitive for middle and upper middle class families.
As with all DC stats, it is better to look at statistics for the entire metro area as opposed to DC proper, since the small size of the district does funny things to comparisons with other cities or states.