World Toilet Day: Top 10 nations lacking toilets

See a lot of people squatting in the open today? Don't be offended: It's the 10th annual World Toilet Day, an initiative to bring awareness to the need for adequate sanitary facilities.

7. Sudan: 17 million

More than 17 million people, or 41 percent of the population, in the northern African nation of Sudan use the outdoors as their bathrooms.

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