!!!Did you know this about Bulgaria? Did you know that Bulgaria is among the top 10 of the 193 UN countries in the following 3 respects. #Death rate - deaths/1,000 population: 14.3 (Rank 6). #Age Structure: 55-64 years - %: 14.0 (Rank 7). #Age Structure: 65 and above - %: 19.3 (Rank 7).