The government-run Deposit Insurance Corp. spent a combined 9.05 trillion yen in the four years to March 31 to enable dozens of failed banks to fully refund depositors, the Financial Services Agency said in a report Friday.

The report was submitted to a Cabinet meeting in accordance with Article 5 of the financial system revival law.

The tally represents an increase of 150 billion yen from the corresponding sum the DIC spent in the 3 1/2 years to last July 31.