There are three main insurance sectors. Property/casualty (P/C) consists mainly of auto, home and commercial insurance. Life/health (L/H) consists mainly of life insurance and annuity products. Most private health insurance is written by insurers whose main business is health insurance. However, L/H and P/C insurers also write this coverage. In 2017 P/C net premiums written rose by 4.6 percent while L/H net premiums written fell by 0.5 percent.