However, it's generally accepted that the overall percentage is significantly lower than in many other parts of the world, including developed nations. While precise figures are hard to come by and often outdated, estimates typically place the percentage in the low single digits to perhaps the low teens, depending on the factors mentioned above. This means it's likely less than 15%, and possibly considerably less. You'll find different numbers from different sources, and it's important to consider the methodology behind any specific statistic you encounter.