To solve this question we have to make deduct these 2 years. 2109 minus 1999 will give the answer.
You are 110 years old.
(1320 months are passed.)
From 1999 to 2109 there are 110 years. If you want to learn your age in 2109 (born in 1999) your age is 110.
Let's see what will be your age if you born +1 or -1 from that date.