Bhutan
less than 0.1% (2001 est.)
Bolivia
0.1% (2003 est.)
Bosnia and Herzegovina
less than 0.1% (2001 est.)
Botswana
37.3% (2003 est.)
Brazil
0.7% (2003 est.)
British Virgin Islands
NA
Brunei
less than 0.1% (2003 est.)
Bulgaria
less than 0.1% - note: no country specific models provided
(2001 est.)
Burkina Faso
4.2% (2003 est.)
Burma
1.2% (2003 est.)