!!!Did you know this about Oman? Did you know that Oman is very similar to Bulgaria in the following 7 respects. #Age Structure: 25-54 years - %: (42.6, 42.4). #Languages - : (5.0, 5.0). #Ethnic groups - : (7.0, 7.0). #Life expectancy at birth - years: (74.97, 74.33). #Urbanization - %: (73.4, 73.1). #Carbon dioxide emissions from consumption of energy - MT: (52,670,000, 52,440,000). #Refined petroleum products - exports per capita - bbl/day: (0.01, 0.01).