Attention years: 19, 22, 28, 30, 42, 54, 72. Excuse me, is this one year old or a nominal age?

Your birthday is counted from the first day of birth ~

Even if both ends of a year account for a certain year, it is one year old ~ so it is a nominal age ~

So your age is 19, 22, 28, 30, 42, 54, 72 ~