New York State employees worked a record 14.8 million overtime hours in 2013, costing taxpayers a total of $611 million.

That's according to a report released by State Comptroller Thomas DiNapoli.

Overtime for state agencies went up nearly 16% in the in the last year and DiNapoli says that spending needs to be reigned in.

The agencies that had the most overtime hours in 2013 were the Department of Corrections, the Office of Mental Health and the State police who spent a total of $35 million last year.

"State agencies should take a hard look at how they are using overtime and for what," DiNapoli said. "To hold the line on state spending, state agencies should double their efforts to reduce this expensive habit."

DiNapoli's report found the state's agency workforce has declined 10.9% in the last year, excluding SUNY and CUNY schools.