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Table 1 Sample size from each study site

From: Returns, setbacks, and future prospects of bio-energy promotion in northern Ethiopia: the case of family-sized biogas energy

Study site Target population Sample size
Biogas users (treatment) Non-biogas users (control) Total
Ofla 516 55 55 110
Hintalo-Wajerat 1061 112 112 224
Enderta 310 33 33 66
Total 1887 200 200 400