You should create:
a tblAccountingGroup table
IDAccountingGroup (Automatic Numbering)
AccountingGroup (Text, size 10)
a tblMonths table
IDMonth (Automatic Numbering)
Month (Text, size 15)
a tblBudgets table
IDBudget (automatic numbering)
BudgetYear (Numeric, Integer)
IDMonth (Numeric, Long...