Only in Brazil, Colombia, Italy, >95% of the population have a shower/bath everyday

[Epaminondas]

Is the graph referring to warm showers?

Either way, in Brazil, 200 million * 150L per shower would mean 30 billion L of clean water per day, i.e. enough drinking water for all of Africa for a month.

That's a phenomenal expenditure of energy and water each day, and bound to be curtailed some day soon.