SELECT budget_type_code ,  count(*) FROM Documents_with_expenses GROUP BY budget_type_code
What are the different budget type codes, and how many documents are there for each?
SELECT budget_type_code , count ( * ) FROM Documents_with_expenses GROUP BY budget_type_code
select budget_type_code , count ( * ) from documents_with_expenses group by budget_type_code
What are the different budget type codes , and how many documents are there for each ?