Barometro National Pre-electoral, January 20-22, 2006: Lourdes Flores Maintains National Lead (clearly in Lima and Urban Areas). Ollanta Humala Leads in Rural areas
Grupo de Opinion Publica de la Universidad de Lima, Estudio 297, Barometro Nacional Pre-electoral Download file
Sample: 2,003 individuals in urban and rural areas in 20 regions, 34 provinces y 133 districts. Sample represents 69.79% of the electoral population.