https://en.wikipedia.org/wiki/List_of_countries_by_total_health_expenditure_per_capita#/media/File:Health_care_cost_rise.svg https://en.wikipedia.org/wiki/List_

https://en.wikipedia.org/wiki/List_of_countries_by_total_health_expenditure_per_capita#/media/File:Health_care_cost_rise.svg https://en.wikipedia.org/wiki/List_of_countries_by_total_hea... It's actually linear if you compare it by percentage of GDP of country. I'm not entirely sure what metric you are using but with GDP it's linear. The only problem it seem is that USA cost is much higher compare to other country. Exponential would have bankrupt a country.