Hi, my name is Matt and looking to help you as a former technical writer and now involved a lot in statistics and data visualizations in last 3 years.
What exactly do you need? Is Internet research and some direct contact of the organizations enough for you (e.g. gathering data for a study)? Is local presence in Ethiopia required?
There is still time (24 hours) to discuss before a project closes. You don't have 4 weeks to choose a freelancer (if at all).
Looking forward to your reply,
Matt