To solve this question we have to make deduct these 2 years. 2073 minus 1964 will give the answer.
You are 109 years old.
(1308 months are passed.)
From 1964 to 2073 there are 109 years. If you want to learn your age in 2073 (born in 1964) your age is 109.
Let's see what will be your age if you born +1 or -1 from that date.