To solve this question we have to make deduct these 2 years. 2091 minus 1956 will give the answer.
You are 135 years old.
(1620 months are passed.)
From 1956 to 2091 there are 135 years. If you want to learn your age in 2091 (born in 1956) your age is 135.
Let's see what will be your age if you born +1 or -1 from that date.