https://www.healthline.com/health/high-cholesterol/levels-by-age#children
This is just one source, and your numbers aren't terrible, if I am correct. But they are in the range, to my way of thinking, where I would ask the pointed question to my GP or a cardiologist...should I be doing something to improve those values or the ratio.

One other think came to me: in some medical circles, they are more concerned over triglycerides. There is new research suggesting that cardiologists would be as well off, or better, to look to those numbers because they correlate strongly with atherosclerosis.