Which is appropriate with regards to the label on a column that lists a person's age in a given year?
To give some context, this question pertains to a label that is to appear at the top of a column in a table. The column will list a person's age at the start of the year calendar year and end of the calendar year for a 30 year period.
Currently we have the column as follows:
Beginning Age/End Age
Is this grammatically appropriate given the usage? Or should it be changed to "Begin Age/End Age" or "Beginning Age/Ending Age"?
Or, does it matter?