  
<prompt> Improved water source by state
 Percentage of households with improved source of drinking water 
 [["Sokoto", "34% - 45%"], ["Kebbi", "46 % - 56 %"], ["Zamfara", "46 % - 56 %"], ["Katsina", "57 % - 69 %"], ["Kano", "57 % - 69 %"], ["Jigawa", "80 % - 90 %"], ["Yobe", "57 % - 69 %"], ["Borno", "70 % - 79 %"], ["Niger", "57 % - 69 %"], ["Kaduna", "57 % - 69 %"], ["Bauchi", "57 % - 69 %"], ["Gombe", "34 % - 45 %"], ["Kwara", "57 % - 69 %"], ["FCT - Abuja", "57 % - 69 %"], ["Kogi", "57 % - 69 %"], ["Plateau", "34 % - 45 %"], ["Adamawa", "46 % - 56 %"], ["Taraba", "34 % - 45 %"], ["Oyo", "70 % - 79 %"], ["Ogun", "70 % - 79 %"], ["Osun", "80 % - 90 %"], ["Ekiti", "80 % - 90 %"], ["Ondo", "57 % - 69 %"], ["Edo", "70 % - 79 %"], ["Delta", "70 % - 79 %"], ["Enugu", "70 % - 79 %"], ["Nasarawa", "70 % - 79 %"], ["Benue", "70 % - 79 %"], ["Imo", "80 % - 90 %"], ["Cross River", "46 % - 56 %"], ["Bayelsa", "46 % - 56 %"], ["Rivers", "70 % - 79 %"], ["Lagos", "46 % - 56 %"], ["Anambra", "70 % - 79 %"], ["Akwa Ibom", "70 % - 79 %"], ["Abia", "80 % - 90 %"], ["Ebonyi", "70 % - 79 %"]] 
 <response> The percentage of households with improved sources of drinking water is highest in the South East (81%) and lowest in the North East (60%). Across the states, access to an improved source of drinking water is lowest in Sokoto (34%) and highest in Imo (90%).  