Of course most Americans are paying for their health insurance - just indirectly. This is actually a very smart system designed to keep people in the dark about how much things cost.
If people had to pay $2500/month for a family of 4 or $80 for a single aspirin in a hospital, they would go ballistic on day one. Also - health premiums go up 10-15% EVERY YEAR. That;s why your annual raise is 3% or less.
Americans receive compensation to the tune of over a trillion dollars per year via health insurance coverage at their place of work. None of that gets counted in the US income figures.