7. The Kingdom of Tonga
Crude depression percentage: 3.2
Total cases: 3,205
We are continuing our list of least depressed countries in the world with The Kingdom of Tonga that represents a group of 169 small islands scattered in Pacific, inhabited by only around 100,000 people. Interestingly, in Tongan language there is no expression for depression. Mental illnesses in Tonga are relatively rare, except for depression and schizophrenia, which rates are slightly rising.
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