The 2010 CIA World Factbook

by United States. Central Intelligence Agency

Brazil
15.17% (31 December 2009)
20.48% (31 December 2008)

Bulgaria
0.55% (31 December 2009)
5.77% (31 December 2008)

Burkina Faso
4.25% (31 December 2009)
4.75% (31 December 2008)

Burma
12% (31 December 2009)
12% (31 December 2008)

Burundi
10% (31 December 2009)
10.08% (31 December 2008)

Cambodia
NA% (31 December 2008)
5.25% (31 December 2007)

Cameroon
4.25% (31 December 2009)
4.75% (31 December 2008)

Canada
0.5% (31 December 2009)
1.75% (31 December 2008)

Cape Verde
7.5% (31 December 2009)
7.5% (31 December 2008)

Central African Republic
4.25% (31 December 2009)
4.75% (31 December 2008)