It is estimated that about one billion own a bike in the world. Half of these people are in China while about 30 million bike owners are in the US.
a lot
80% of the population own a PDA
Over 2,000,000
no one knows
70 million
10
the whole of the usa
bout 6
88 million
about 6.4 million
about 89% of people own at least 1 pet in the usa