Not more specific I’m just correcting the inaccuracy - it’s a quote from your source :) I had a look around for a more specific figure too though out of interest and I’m really surprised that particular statistic isn’t easier to find given how shocking the numbers are. I’m not in the US so this subject always seems mad any way you look at it.

Edit: This site seems to have good data but you’d have to analyze it to come up with figures. The charts are very disturbing.