A new report on cancer statistics in CA: A Cancer Journal for Clinicians found that from 1991 to 2015, the cancer death rate fell about 1.5% annually. This resulted in a total decrease of 26%—more than 2.3 million fewer deaths than would have occurred had the rate remained at its peak. The American Cancer Society predicts that in 2018, there will be 1,735,350 new cases of cancer and 609,640 deaths. Although prostate cancer accounts for 19% of cancers in men and breast cancer for 30% of cancers in women, the most common cause of cancer death in both sexes is lung cancer, which represents one-quarter of cancer deaths in both sexes. From 2008–13, prostate cancer diagnoses declined with the decreasing use of PSA testing. "We're making progress in reducing death rates from cancer because of improvements in treatment and early detection," said senior author Ahmedin Jemal, a vice president of the American Cancer Society. "But prevention is the low-hanging fruit. We still have 40 million adult smokers in the U.S., which accounts for nearly a third of cancer deaths.