I'm from Spain. If you're working a small amount of money is deducted from your salary (between 25-100 euros, I think, according with the money you earn) every month. If you're not working, you don't have to pay anything. And with our healthcare system almost everything is free, except medecines and some minor stuff.

And if you're an "illegal" inmigrant, it's the same. You just need to get the card of the healthcare system (we call it Seguridad Social) and that's really, really easy. And then, you'll be attended every time you need it with no cost at all (except for the medecines).