Hi - i found this - looks from this like you're doing pretty well!!!

Experts disagree on how much body fat is too much, but the following general guidelines are a reasonable estimate:

Obese: More than 33% for women and more than 26% for men
Overweight: Between 28% and 33% for women and between 21% and 26%
Acceptable: Between 17% and 28% for women and between 12% and 21% for men
Lean: Less than 17% for women and less than 12% for men
Underweight: Less than 8% for women and 5% for men