It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
More boys than girls are born during the day; more girls are born at night.
120
In 75% of American households, women manage the money and pay the bills.
97
According to some estimates, Americans are sitting on $30 billion worth of unredeemed gift cards.
223
Infants spend more time dreaming than adults do.
102
Roughly a quarter of the world's people live in China.
50
Over 98 percent of Japanese people are cremated after they die.
54
A hard working adult sweats up to 4 gallons per day.
39