To solve this question we have to make deduct these 2 years. 2104 minus 1975 will give the answer.
You are 129 years old.
(1548 months are passed.)
From 1975 to 2104 there are 129 years. If you want to learn your age in 2104 (born in 1975) your age is 129.
Let's see what will be your age if you born +1 or -1 from that date.