5,131,666 (25.2%) of the population were aged 14 or under whilst 2,525,573 (12.4%) were aged 60 or over, leaving a working age (15-59) population of 12,702,700. The dependency ratio was 60.2%. The mean age was 32 years and the median age was 31 years. The sex ratio was 94 males per 100 females. The fertility rate for married females aged 15 or over was 2.65 live births. There were 5,264,282 households of which 3,986,236 (75.7%) were headed by males and 1,278,046 (24.3%) were headed by females.

Question: Which age group populated the city the least?
Answer: aged 60 or over

Question: Which was higher, the mean age or the median age?
Answer: mean age

Question: How many more households were headed by males than by females?
Answer: 2708190

Question: How many more people aged 14 or under were there than those aged 60 or over?
Answer: 2606093

Question: How many more people were aged 14 or under than those aged 60 or over?
Answer: 2606093

Question: How many percent more were aged 14 and over than 60 and over?
Answer: 12.8

Question: How many percent were not age 14 or under?
Answer: 74.8

Question: How many percent were not age 60 or over?
Answer: 87.6

Question: How many less people 14 or under are there than the total working age (15-59)?
Answer: 7571034

Question: How many less people age 60 and over are there than the total number of working age people (15-59)?
Answer: 10177127

Question: How many percent of the population was not dependency age?
Answer: 39.8

Question: How many percent of females were not fertile with live births?
Answer: 97.35

Question: How many more females per 100 were there than males?
Answer: 6

Question: How many more households in total were there than ones headed by a male?
Answer: 1278046

Question: How many percent of households were not headed by a male?
Answer: 24.3

Question: How many percent of households were not headed by a female?
Answer: 75.7

Question: How many percent more were aged 14 and over than 60 and over?
Answer: 12.8

Question: How many percent were not age 14 or under?
Answer: 74.8

Question: How many more people were aged 14 or under than those aged 60 or over?
Answer: 2606093

Question: How many less people 14 or under are there than the total working age (15-59)?
Answer: 7571034

Question: How many more people were aged 14 or under than those aged 60 or over?
Answer: 2606093

Question: How many percent more were aged 14 and over than 60 and over?
Answer: 12.8

Question: How many percent were not age 14 or under?
Answer: 74.8

Question: How many percent were not age 60 or over?
Answer: 87.6

Question: How many less people 14 or under are there than the total working age (15-59)?
Answer: 7571034

Question: How many less people age 60 and over are there than the total number of working age people (15-59)?
Answer: 10177127

Question: How many percent of the population was not dependency age?
Answer: 39.8

Question: How many percent of females were not fertile with live births?
Answer: 97.35

Question: How many percent of households were not headed by a male?
Answer: 24.3

Question: How many percent of households were not headed by a female?
Answer: 75.7

Question: How many more households in total are there than households headed by males?
Answer: 1278046

Question: How many more households in total are there than households headed by females?
Answer: 3986236

Question: How many total people were there in the population?
Answer: 20359939

Question: How many more people were of working age than not working age?
Answer: 5045461