The stats in this table are terribly out of date. I'm not criticizing your post, just pointing it out. Also odd the authors of this article chose to publish 2 numbers for the U.S. I interpret them for corresponding to 2004/1993, which means there was a significant difference between those two years, not the rate is between those numbers.

I've bemoaned the difficulty in finding reliable, research-quality statistical data like this for a long time. I've even tried to raise capital to for a start-up to do this. No luck.