How to estimate Average person-years lived between ages x and x+n i.e., nax?

In abridged life table, how to estimate nax (Average person-years lived between ages x and x+n) for under 5 age group (i.e 0-1 age, 1-4 age group) and above 5 years age group?

11 November 2018 9,717 0 View