To solve this question we have to make deduct these 2 years. 2117 minus 1961 will give the answer.
You are 156 years old.
(1872 months are passed.)
From 1961 to 2117 there are 156 years. If you want to learn your age in 2117 (born in 1961) your age is 156.
Let's see what will be your age if you born +1 or -1 from that date.