To solve this question we have to make deduct these 2 years. 2103 minus 1968 will give the answer.
You are 135 years old.
(1620 months are passed.)
From 1968 to 2103 there are 135 years. If you want to learn your age in 2103 (born in 1968) your age is 135.
Let's see what will be your age if you born +1 or -1 from that date.