WASHINGTON, D.C. -- Fewer U.S. adults are smoking, and many of those who do have tried to quit.
According to a new report from the Centers for Disease Control and Prevention, 19 percent of Americans said they smoked daily or most days in 2011.
That's a slight decrease from 2005 when more than 20 percent reported smoking.
Fifty-two percent of smokers said they've tried to quit. Many are smoking fewer cigarettes.
However, the report says as the number of people smoking more than 30 cigarettes a day decreased, the number of people who smoke fewer than 10 increased.
The statistics are published in the CDC's Morbidity and Mortality Weekly Report.