To solve this question we have to make deduct these 2 years. 2109 minus 1981 will give the answer.
You are 128 years old.
(1536 months are passed.)
From 1981 to 2109 there are 128 years. If you want to learn your age in 2109 (born in 1981) your age is 128.
Let's see what will be your age if you born +1 or -1 from that date.