To solve this question we have to make deduct these 2 years. 2118 minus 1973 will give the answer.
You are 145 years old.
(1740 months are passed.)
From 1973 to 2118 there are 145 years. If you want to learn your age in 2118 (born in 1973) your age is 145.
Let's see what will be your age if you born +1 or -1 from that date.