Please answer without showing the working as I just need to make sure of my answer, for working section please write "BLANK" and I will mark this as helpful.

You are about to calculate the human development index of a country. First, you want to calculate the health index (life expectancy index). The life expectancy at birth in the country in question is 70.8 years, and you know that the possible minimum is 21 while the possible maximum is 81. Calculate the health index (life expectancy index)