To solve this question we have to make deduct these 2 years. 2109 minus 1980 will give the answer.
You are 129 years old.
(1548 months are passed.)
From 1980 to 2109 there are 129 years. If you want to learn your age in 2109 (born in 1980) your age is 129.
Let's see what will be your age if you born +1 or -1 from that date.