Dave and I notice the somewhat different performance of different regions in different case waves. We wondered what the cumulative rates look like. Even without age or other appropriate adjustments, the cumulative effect over the entire epidemic is pretty similar. And if you took Alaska, Hawaii, Oregon and Washington out of the West, and New Hampshire, Vermont and Maine out of the Northeast, you would see even more convergence. Those far north coast states have some weird factor–climatic likely–that influences their case rates. Anyway interesting to see.
