To solve this question we have to make deduct these 2 years. 2109 minus 1991 will give the answer.
You are 118 years old.
(1416 months are passed.)
From 1991 to 2109 there are 118 years. If you want to learn your age in 2109 (born in 1991) your age is 118.
Let's see what will be your age if you born +1 or -1 from that date.