The demographics of San Marino include population density, ethnicity, education level, economic status, religious affiliations and other aspects of the population. The population of San Marino consists of native Sammarinese and Italian citizens. Crop farming, sheep farming, and the working of stone from the quarries formed the early backbone of San Marino's economy. It has no mineral resources, and today most of the land is cultivated or covered by woods. Vital statistics Sources: Current vital statistics CIA World Factbook demographic statistics Age structure 0-14 years: 16% (male 2,181; female 2,038) 15-64 years: 68% (male 8,992; female 9,425) 65 years and over: 16% (male 1,849; female 2,452) (2000 est.) Sex ratio at birth: 1 male(s)/female under 15 years: 1.07 male(s)/female 15-64 years: 0.95 male(s)/female 65 years and over: 0.75 male(s)/female total population: 0.94 male(s)/female (2000 est.) Nationality noun: English: Sammarinese (singular and plural); Italian: Sammarinese (singular), Sammarinesi (plural) adjective: Sammarinese Ethnic groups Sammarinese, Italian Religions Roman Catholic 97.2% Languages Italian (official), Sammarinese variety of Romagnol (not official) Literacy definition: age 10 and over who can read and write total population: 96% male: 97% female: 95% (1976 est.) References Society of San Marino