The orthopaedic and prosthetic devices market in the US was estimated at $15.5 billion in 2013, accounting for 14.6% of the total medical devices market. The market is projected to grow at a rate of 6.4% annually from 2013 to 2016. Major market segments include orthopaedic appliances, artificial joints, and artificial body parts. The top states by revenue in the medical devices industry are California, Washington, Texas, Illinois, and Florida, together making up over 42 million people aged over 65.