Here is the article from the National Institutes of Health
The Answer: 80% of our planet uses Natural Medicine (herbs, massage, yoga, food, acupuncture, meditation, exercise, etc.)
How much of the United States at least use traditional medicine as a supplement?
Answer: 20-30%, just as a supplement to their white coat. Americans predominantly still use allopathic straight white coats.
The rest of the world does not.