To solve this question we have to make deduct these 2 years. 2108 minus 1991 will give the answer.
You are 117 years old.
(1404 months are passed.)
From 1991 to 2108 there are 117 years. If you want to learn your age in 2108 (born in 1991) your age is 117.
Let's see what will be your age if you born +1 or -1 from that date.