Have you tried tracking these numbers even at the state level? The data entry/scraping aspect alone is substantial, but when you get down to the nitty gritty of

Have you tried tracking these numbers even at the state level? The data entry/scraping aspect alone is substantial, but when you get down to the nitty gritty of the wildly varying ways that each agency (state and county) reports these numbers, then you're essentially required to have an opinionated framework and domain knowledge to maintain a consistent, canonical dataset.