So this is the data I already have:
Person 1 : DOB : Age on Nov 5th 2013
Ex:
John Smith: Jan 1 1960 : 53.7
I have thousands of records that are like this. What I would like to do is to create a custom group range (E.G. 18-24, 25-30, 31-40, etc) and i would like to count how many records fall into which age groupings. What is the simpliest and most accurate way to find these counts? Any helpful hints or tricks would be appreciated!