For legislation to improve health care cost accountability. Health Care Financing. Not later than October 1 of every year, the commission shall hold public hearings based on the report submitted by the center for health information and analysis under section 16 of chapter 12C comparing the growth in total health care expenditures to the health care growth benchmark for the previous calendar year. The hearings shall examine health care provider, provider organization, and private and public health care payer costs, prices, weighted average payer rates, and cost trends, with particular attention to factors that contribute to cost growth within the commonwealth’s health care system.