Canada
2.4% (31 December 2009 est.)
4.73% (31 December 2008 est.)

Cape Verde
10.98% (31 December 2009 est.)
9.99% (31 December 2008 est.)

Central African Republic
NA% (31 December 2009 est.)
NA% (31 December 2008 est.)

Chad
NA% (31 December 2009 est.)
NA% (31 December 2008 est.)

Chile
7.25% (31 December 2009 est.)
13.26% (31 December 2008 est.)

China
5.81% (31 December 2010 est.)
5.31% (31 December 2009 est.)

Colombia
12.98% (31 December 2009 est.)
17.18% (31 December 2008 est.)

Comoros
10.5% (31 December 2009 est.)
10.5% (31 December 2008 est.)

Congo, Democratic Republic of the
65.42% (31 December 2009 est.)
43.15% (31 December 2008 est.)

Congo, Republic of the
NA% (31 December 2009 est.)
NA% (31 December 2008 est.)