To solve this question we have to make deduct these 2 years. 2109 minus 1972 will give the answer.
You are 137 years old.
(1644 months are passed.)
From 1972 to 2109 there are 137 years. If you want to learn your age in 2109 (born in 1972) your age is 137.
Let's see what will be your age if you born +1 or -1 from that date.