HCR Update from Mark Sanna: Fewer adults in the United States are smoking and those who do are smoking fewer cigarettes each day, but the trend is weaker than the government had hoped. A report released Tuesday by the Centers for Disease Control and Prevention showed that 19.3% of adults said they smoked last year, down from about 21% in 2005. The rate for smoking 30 or more cigarettes daily dropped to about 8% from almost 13% over the same period.