Here are some interesting facts and figures to contemplate:-
- Recent summer population of Antarctica was – 4,490 people, with 955 of those at McMurdo.
- Current world population surpassed 7 billion in October 2011.
- The world’s population reached 1 billion for the first time in 1804. By 1927, it was 2 billion, and 3 billion by 1960. Since then, the world has added another 1 billion people around every 13 years.
- Estimated number of humans who have ever lived - 107 billion. Estimates suggest that about 40% of those who ever lived did not survive beyond their 1st year.
- The Han Chinese are the largest ethnic group on the planet being 19% of the current world population.
- The world’s most spoken language is Mandarin – 12.4 % of the world population speak Mandarin as their primary language.
- The global sex ratio is – 1.01 males to 1 females.
- Global life expectancy is 65 years for men and 69 for female.
- Global fertility rate is 2.52 children.