tab and summerize

Dear All,

I am beginner with use of Stata and would like to ask your kindly help.

I have following variables: year, location, income, share of expenditure

and I would like to tab year with location (urban and rural) based on mean of expenditure share with corresponding to income quintiles ( lowest and highest ) and also how to quintiles income ?

I would high appreciate your help in this issue.

Thank you