and Kaynardzha (15.7‰). All these municipalities have relatively large Romani populations. On the other hand, the municipalities of Georgi Damyanovo, Banite and Nevestino have a extremely low birth rates. These municipalities are almost exclusively inhabited by ethnic Bulgarians. Teenage pregnancy Bulgaria has one of the highest share of teenage pregnancy in Europe. Nevertheless, this number is declining rapidly in recent years. The ten municipalities with the largest absolute number of teenage mothers are: Sliven (373), Sofia (339), Plovdiv (245), Pazardzhik (161), Stara Zagora (141), Nova Zagora (131), Burgas (108), Yambol (106), Haskovo (96) and Varna (86). Life expectancy at birth Total population: 74.83 years Male: 71.37 years Female: 78.39 years (2016-2018 est.) Average life expectancy at age 0 of the total population. Kardzhali Province and Sofia City have the highest life expectancy with 76.6 years for both sexes. The lowest life expectancy is recorded in the Northwestern provinces like Montana (72.7 years), Vratsa (72.8 years) and Vidin (72.9 years). Infant mortality rate Total: 5.8 deaths/1,000 live births (2018) Male: 6.2 deaths/1,000 live births (2018) Female: 5.3 deaths/1,000 live births (2018) Projections The following forecast for the future population is an official estimate of the National Statistical Institute of Bulgaria. Demographic statistics Demographic statistics according to the World Population Review. One birth every 8 minutes One death every 5 minutes One net migrant every 111 minutes Net loss of one person every 11 minutes Demographic statistics according to the CIA World Factbook, unless otherwise indicated. Population 6,519,789 (Sept 2021 cens) 6,919,180 (July 2021 est.) 7,057,504 (July 2018 est.) Ethnic groups Bulgarian 76.9%, Turkish/Balkan Gagauz 8%, Romani 4.4%, other 0.7% (including Russian, Armenian, and Vlach), other (unknown) 10% (2011 est.) note: Romani populations are usually underestimated in official statistics and may represent 9–11% of Bulgaria's population Languages Bulgarian (official) 76.8%, Balkan Gagauz 8.2%, Romani 3.8%, other 0.7%, unspecified 10.5% (2011 est.) Religions Eastern Orthodox 59.4%, Muslim 7.8%, other (including Catholic, Protestant, Armenian Apostolic Orthodox, and Jewish) 1.7%, none 3.7%, unspecified 27.4% (2011 est.) Age structure 0-14 years: 14.52% (male 520,190 /female 491,506) 15-24 years: 9,4% (male 340,306 /female 312,241 25-54 years:42.87% (male 1,538,593 /female 1,448,080) 55-64: 13.15% (male 433,943 /female 482,784) 65 years and over: 20.06% (male 562,513 /female 835,065) (2020 est.) 0-14 years: 14.6% (male 530,219 /female 500,398) 15-24 years: 9.43% (male 346,588 /female 318,645) 25-54 years: 43.12% (male 1,565,770 /female 1,477,719) 55-64 years: 13.3% (male 442,083 /female 496,888) 65 years