Bhutan:
NA%

Bolivia:
70% (1999 est.)

Bosnia and Herzegovina:
NA%

Botswana:
47% (2000 est.)

Brazil:
17.4% (1990 est.)

British Virgin Islands:
NA%

Brunei:
NA%

Bulgaria:
35% (2000 est.)

Burkina Faso:
NA%

Burma:
23% (1997 est.)