CHICAGO (CBS) – Significantly more Chicagoans are arming themselves with guns.

As WBBM Newsradio’s Regine Schlesinger reports, over the past two years, the city has seen a 16 percent spike in the number of people holding state Firearm Owner’s Identification Cards.

About 122,000 people possessed FOID cards at the beginning of this year compared to 105,000 at the beginning of 2010, said Monique Bond, spokeswoman for the Illinois State Police.

Illinois residents must possess a FOID card to buy guns in the state.

Illinois State Police officials check an applicant’s identification and background before issuing a card.

The uptick in FOID cards follows the City Council’s approval of a July 2010 ordinance lifting a 28-year-old ban on handguns in Chicago. That followed the U.S. Supreme Court ruling in the McDonald v. Chicago case, which rendered the law unenforceable.