Cost of Private Healthcare

Private Healthcare in Spain is excellent and there are many options and situations I realize, however, generally speaking, I  am curious what other full time residents of Spain are paying and who they are using for Private Healthcare?  I am on my 3rd year and every year the cost has gone up with this coming year quite substantially. I have had no treatment that would seem to warrant this jump.  Might just be the normal course of events with health insurance or perhaps my insurance was under priced to begin with (sales tactic).  

Switching private healthcare doesn't seems like a wise decision as one must endure another waiting period for certain services but staying with one that increases substantially year over year should probably be replaced sooner than later.

If anyone can share their experiences, even privately, would be much appreciated so I am better able to make a wiser decision.  Thank you.