Khachapuri ( from ხაჭო xačo “curds” + პური puri “bread”) is a traditional Georgian dish of cheese-filled bread. The bread is leavened and allowed to rise, and is shaped in various ways. The filling contains cheese (fresh or aged, most commonly suluguni), eggs and other ingredients. According to a 2009 survey 88% of Georgians prefer khachapuri to pizza. It is more popular among men and older people. As a Georgian staple food, the price of making a khachapuri is used as a measure of inflation in different Georgian cities by the Khachapuri index, developed by the International School of Economics at Tbilisi State University.