Residents of Illinois are seeing the cost of healthcare skyrocket for 2016, with some insurers charging as much, and in some cases even more, that 40 percent above last year.

The Affordable Health Care Act enters its third year with enrollment underway  since  November 1. The lowest-cost plans in most of Illinois counties saw a 15-20 percent rise this year, according to the Illinois Department of Insurance.

Blue Cross is especially in the dog house with consumers. The state’s largest health care insurance provider raised its premiums by an average of 17.8 percent on individual policies regardless of whether or not they were sold on the exchange.

Other insurers also upped their rates, and some in an even more drastic way than Blue Cross. But since about 80 percent of those enrolled in ACA plans are insured by Blue Cross, they are the company facing the most consumer complaints. According to its rate filing, as many as 329,000 Illinois residents could be effected by the rate hikes.