Smoking rates in the United States declined in the last 5 years, and some people who smoke every day are smoking fewer cigarettes, the Centers for Disease Control and Prevention said Tuesday.

Smoking in adults declined from 20.9 percent in 2005 to 19.3 percent in 2010, according to the CDC's Vital Signs. The rates are higher among men, American Indians, Alaskan Natives and poor people.

The percentage of adult daily smokers who smoke 30 or more cigarettes per day also decreased from 13 percent in 2005 to 8 percent in 2010, while the percentage of daily smokers who smoke 1 to 9 cigarettes per day increased from 16 percent to 22 percent.

"Despite an overall decrease in the prevalence of cigarette smoking during 2005–2010, the Healthy People 2020 goal of achieving an overall adult smoking rate of 12% or less will not be achieved if current trends continue," said the new edition of the Vital Signs report.

About 45.3 million American adults still smoke in the United States and half of them will die prematurely from smoking-related causes, according to the CDC.