How can it NOT rise, when Obamacare mandates that insurance companies cover pre-existing conditions? That changes the ratio of healthly people paying in but not using many healthcare dollars, to more unhealthy people paying the same, but USING much more of the limited healthcare dollars. THAT cannot be sustained without raising rates on the generally-healthy masses.
No one with common sense could be surprised. (BTW, "inflation" stats do NOT include gas and food--I'd guess they have kept pace with medical increases over the past few years...but are not counted.)