The average person in the world is twenty-eight years old. In Japan, the average life expectancy for a woman is eighty-six. In Afghanistan, it's forty-five.
Twenty per cent of the world's population live in China. There are one point two billion people in India.
Thirteen per cent of the world's population speak mandarin as their first language. Five per cent speak Spanish as their first language. Five per cent also speak English as their first language; but English is a second language for one billion people.
There are many different religions in the world. For example, thirty-three per cent of the world are Christian, twenty-one per cent are Muslim and thirteen per cent are Hindu.
Forty per cent of people work in a service industry (hotels, banks, etc.), thirty-eight per cent are in agriculture and twenty-two per cent are in manufacturing and production.
City and countryside
Fifty-one per cent of the world's population live in cities and forty-nine per cent live in the countryside.
Internet and mobile phones
Two point five billion people in the world use the Internet and five billion people have a mobile phone.