triglycerides too low?

Could someone supply a list of what the normal lipid ranges should be. Doctor says they are fine.

But It seems to me that my triglyceride levels are rather low at 0.4. Is this a problem?

Otherwise Hdl 2.20 Ldl 1.8 and total cholesterol 4.0. HbA1c 6.5 down from 6.9

thank you