Edited sentence: 1 million.Comoros     0.4 million.Costa Rica  0.2 million.Cuba        1.2 million.Examples of a few other countries in the mid-range of drinking water accessibility and their unserved populations who have only contaminated domestic water are:.Hungary     0.1 million.Iran        5.6 million.Sudan      12.3 million.Syria       3.8 million.Tunisia     2.1 million.Venezuela   5.0 million.Zimbabwe    2.7 million