[Cataclaw]

Great work, thank you!

The reason for the decline is, as you suggested, related to inhabitants per dwelling. Although dwelling density has increased in many places you've looked at, the number of inhabitants per dwelling has decreased (smaller family sizes). Also, the average floor space per dwelling has increased.

My only constructive advice is to use metric figures. As a Canadian planner, the use of miles throws me off. In planning, we typically use density per square kilometer and/or hectares.