To get value and cumulative from one sheet to another sheet with matching

Sir,

I am making report in excel to track accident/incident report.

I like to get values from Sheet " Mastersheet " to Sheet " Frontsheet".

I created a table in both sheet. While i am changing month in sheet " frontsheet" using data validation . I like get values from mastersheet according to month and row header ( like " first aid injury" ) in column period ( front sheet) and cumulative upto month which i selected


Excel sheet attached.