Final answer:
In 2014, more than 50 million American adults experienced some type of mental illness, which is about 20 percent of the total adult population. 13 million had serious mental illness or disorder, about 5 percent of the adult population, and around 16.5 percent of children aged 6-17 experienced mental illness or disorder.
Step-by-step explanation:
According to the National Institute of Mental Health, in 2014, more than 50 million American adults experienced some type of mental illness or mental disorder, which is about 20 percent of the total adult population. Out of these, 13 million had serious mental illness or mental disorder, which is about 5 percent of the adult population. Additionally, around 16.5 percent of children aged 6-17 experienced mental illness or disorder.