It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
The most dangerous job in the United States is that of an Alaskan Crab Fisherman.
65
Boys who have unusual first names are more likely to have mental problems than boys with conventional names. Girls don't seem to have this problem.
131
Roughly a quarter of the world's people live in China.
50
Approximately one-third of the population can't snap their fingers!
91
Over 50% of lottery players go back to work after winning the jackpot.
71