To solve this question we have to make deduct these 2 years. 2115 minus 1959 will give the answer.
You are 156 years old.
(1872 months are passed.)
From 1959 to 2115 there are 156 years. If you want to learn your age in 2115 (born in 1959) your age is 156.
Let's see what will be your age if you born +1 or -1 from that date.