sentences:  The 2012 "Global Religious Landscape" survey by the Pew Forum on Religion and Public Life (an American think tank) found that 83.3% of Italy's residents were Christians, 12.4% were irreligious, atheist or agnostic, 3.7% were Muslims and 0.6% adhered to other religions.Regarding Italian citizens in Italy, according to the 2005 Eurobarometer poll (conducted on behalf of the European Commission), 74% of Italians "believe there is a God", 16% "believe there is some sort of spirit or life force" and 6% "do not believe there is any sort of spirit, God, or life force".According to a 2006 survey by (an Italian research centre), Catholics made up 87.8% of Italian citizens, with 36.8% describing themselves as observants.