To solve this question we have to make deduct these 2 years. 2117 minus 1980 will give the answer.
You are 137 years old.
(1644 months are passed.)
From 1980 to 2117 there are 137 years. If you want to learn your age in 2117 (born in 1980) your age is 137.
Let's see what will be your age if you born +1 or -1 from that date.