query: How many people live in Tanzania?
passage: Demographics of Tanzania
According to the 2012 census, the total population was 44,928,923 compared to 12,313,469 in 1967,[5]:page 1 resulting in an annual growth rate of 2.9 percent. The under 15 age group represented 44.1 percent of the population, with 35.5 percent being in the 15–35 age group, 52.2 percent being in the 15–64 age group, and 3.8 percent being older than 64.[14]
passage: Tanzania
Approximately 70 percent of the population is rural, although this percentage has been declining since at least 1967. Dar es Salaam (population 4,364,541) is the largest city and commercial capital. Dodoma (population 2,083,588) is located in the centre of Tanzania, is the capital of the country, and hosts the National Assembly.