Id take this all with a grain of salt because quite often these things represent a change in the mix rather than an increase in value of of each housing unit by said amount.
Case in point. Three years ago I sold a place in the heart of North Park for around $425. Today it would sell for at most $650K which is about 50% in 3 years rather than the reported 83% in 2 years.
Another case in point is the 92010 market which reported at 69% gain in 2 years. Until the last decade, most of the housing stock was from the 80’s with just a little from early 2000’s. Until the last 2-3 years most sales were the older housing stock. Between 2012 and 2015 The Foothills went in bringing bigger and newer homes that didnt exist there. Then between 2017/2019 high end homes hit 92010 in Robertson Ranch. Its only been the last couple years that these homes starting hitting the market en masse especially the RR which could go into the 3M range for the right house now.
So part is appreciation but a lot can be a change of mix also