How many sick Americans have been dumped or rejected by health insurance companies?

How many people in the U.S. have been denied coverage due to a pre-existing condition? How many have been dumped from coverage because they became ill enough that covering them was too expensive for the company? As it is, insurance companies are allowed to dump coverage for people who get sick and deny coverage to people who are already sick. I'm aware that these things happen, but I don't know how common they are. I want to find an estimate for how many people in the U.S. have been dumped or rejected in any particular year or decade.
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According to a recent national survey, approximately 12.6 million non-elderly Americans have been turned down for coverage due to a pre-existing condition in the last 3 years, and 1 in 10 cancer patients have been denied coverage and 6% have lost their coverage because they have been diagnosed with cancer. Also, over the past 5 years, 3 large insurers have been revoked coverage due to being too expensive to continue covering. You will find other numbers in the following link. And please, before anyone disputes it due to the source, take a look at the sources for the link. It is researched. As for the other posters saying things like "countries with universal health care have death panels" and "the wait list for cancer screening is a year long" have you ever lived in a country with universal health care? Because I live in Canada, and if you do some research, you will find out that there are, in fact, no such things as death panels here. Also, when it comes to cancer screening, the wait lists are short. In fact, my mom, who is considered high risk for breast cancer, has never had to wait for a mammogram. She gets them on schedule every year. Plus, 85% of all cancer clinics in Canada have a wait time of 4 weeks or less for most types of cancer from initial diagnosis to treatment, and if the treatment is urgent, there is no wait. The problem is, when Americans who want to dispute the quality of care offered in Canada look at the numbers, they see numbers from 10 years ago and think that the situation is the same today. Canada's health care system reached a critical point in the late 1990's due to many budget cutbacks, but our government has been working hard and providing a lot of funding to improve the system to what we have today, which, in my opinion, is more than sufficient. Compared to the attitude of Canadians 10 years ago, you will find that today, many Canadians are happy with our health care system, and our only complaint is a lack of specialists in certain areas. From what I understand about the American system, this is a plague there as well.
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