Trouble is with averages is that they tell you very little.
Some people are lucky with their health and rarely see the GP, and never need hospital treatment.
My late MIL, bless her, must have cost a fortune. She had 2 problem pregnancies, breast cancer, lymphoma (twice), three things wrong with her heart requiring long-term medication and some time in hospital, asthma, 2 replacement knees, 2 replacement hips, arthritis requiring morphine patches etc, repeated chest infections, pancreatitis (2 weeks in hospital) and in the last couple of years vascular problems with her legs requiring several admissions, visits from district nursing team etc. I will have forgotten some things. She never smoked, didn't drink and was only slightly overweight in middle age.
She belonged to a generation that grew up in the war. Her dad was a steel worker and needed the lion's share of rationed food, she slept in an Anderson shelter from about 1940-45 and was admitted to isolation hospital as a child with rheumatic fever. While she was there she caught diphtheria and the rheumatic fever caused one of her heart problems.
You'll be impressed to know she never complained, or even grunted or groaned when trying to remain mobile.
Her generation did not have great start in life as far as health was concerned.
And this is the generation now it their mid 80s.