can any one give me an estimate on how old my female is?i know it cant be certain but can any one tell me atleast what year she was prolly born in. she is about 3 feet long and 740g, i got her back in july of 04 when she was 22in", i dont know how much she weighed back then. i know i wont be able to find her exact age but i just want the year she was born in.