To gas prices, foreclosure rates and the cost of rice, add this rising economic indicator: the number of tips to the police from people hoping to collect reward money.

Calls to the Southwest Florida Crime Stoppers hot line in the first quarter of this year were up 30 percent over last year. San Antonio had a 44 percent increase. Cities and towns from Detroit to Omaha to Beaufort County, N.C., all report increases of 25 percent or more in the first quarter, with tipsters telling operators they need the money for rent, light bills or baby formula.

“For this year, everyone that’s called has pretty much been just looking for money,” said Sgt. Lawrence Beller, who answers Crime Stoppers calls at the Sussex County, N.J., sheriff’s office. “That’s as opposed to the last couple of years, where some people were just sick of the crime and wanting to do something about it.”

As a result, many programs report a substantial increase in Crime Stopper-related arrests and recovered property, as callers turn in neighbors, grandchildren or former boyfriends in exchange for a little cash.