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When will the average survival rate of all cancers exceed 75%?

Every sixth death in the world is due to cancer, making it the second leading cause of death (second only to cardiovascular diseases). In 2016, 8.9 million people are estimated to have died from the various forms of cancer. The Institute for Health Metrics and Evaluation put relatively small error margins around this global figure: the lower and upper estimates extend from 8.75 to 9.1 million.

As of 2013 in the United States, the mean 5-year relative survival rate of all cancers (for both sexes) was 69.2%. As you can see from this chart by Our World in Data, the survival rate has been steadily increasing. For example, in 1977 the figure was 48.9%

When will the mean 5-year relative survival rate of all cancers for both sexes in the United States exceed 75.0%?

This resolves positive if at some future date, the 5-year survival rates will have been reported to exceed 75.0%. This question will refer to data Published by the National Cancer Institute or any other reputable source of medical statistics.

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