1:By 2015, the population of Switerland had increased to 8 million.
2:In Indonesia in 2015, 5% of the population was between 5 and 9 years old.
3:In Greece, the number of people working in agriculture fell from 1,4 million to 2000 to 1.2 million in 2012.
4:The population of Detroit in the USA increased to 1,86 million in 1950 and had decreased to 700,000 by 2012.