To solve this question we have to make deduct these 2 years. 2099 minus 1963 will give the answer.
You are 136 years old.
(1632 months are passed.)
From 1963 to 2099 there are 136 years. If you want to learn your age in 2099 (born in 1963) your age is 136.
Let's see what will be your age if you born +1 or -1 from that date.