To solve this question we have to make deduct these 2 years. 2108 minus 1999 will give the answer.
You are 109 years old.
(1308 months are passed.)
From 1999 to 2108 there are 109 years. If you want to learn your age in 2108 (born in 1999) your age is 109.
Let's see what will be your age if you born +1 or -1 from that date.