Ann,
  I looked on Google under Breastfeeding rates Africa
and breastfeeding rates Nigeria. you have to sift through
some website that are not useful for your purpose, but
the info is out there. Once you get to a good website
you also have to poke around a bit to get just
what you're looking for Check out these websites for
starters.

http://www.childinfo.org/eddb/brfeed/probl3.htm

http://www.who.int/nut/db_bfd.htm

www.unicef.org/specialsession/about/sgreport-pdf/
14_Breastfeeding_D7341Insert_English.pdf

Good Luck,
  Naomi Bar-Yam

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