As a Medical Technologist, I have noticed over the years that the definition of "normal" cholesterol has changed over the years. Unfortunately, research is continuing and the definition of "normal" will also change. It will also depend upon the laboratory that does your test. Not all laboratories have the same normal values.
The general conscience is that the total cholesterol should be under 200 mg/dl, the LDL under 100 mg/dl, and the triglycerides should be under 200 mg/dl (some agencies prefer a value under 100). Many labs also report an HDL/LDL level. Genetics play a large factor, as well as diet. I know my Mother is slender and eats well, but has trouble with a high cholesterol level, whereas my Dad is overweight, eats poorly and has a low cholesterol value. Your doctor should help you with the complexities of evaluating your cholesterol level.