chile, Mexico, United States, Antarctica, Russia, Japan, Philippines, New Zealand, Papua New Guinea, Indonesia, Canada, Taiwan, Guatemala
Answer:
mental and behavioural conditions – 4.8 million people (20.1%)
back problems – 4.0 million people (16.4%)
arthritis – 3.6 million people (15.0%)
asthma – 2.7 million people (11.2%)