Colon polyp facts. 1  Colon polyps are growths on the inner lining of the colon and are very common. 2  Colon polyps are important because they may be, or may become malignant (cancerous).  Changes in the genetic material of cells lining the colon are the cause of polyps.
DEFINITION of 'Consumer Price Index-CPI'. A measure that examines the weighted average of prices of a basket of consumer goods and services, such as transportation, food and medical care. The CPI is calculated by taking price changes for each item in the predetermined basket of goods and averaging them; the goods are weighted according to their importance.
About This Statistic. This statistic shows the Consumer Price Index in the U.S. from 2010 to 2015 with additional projections up to 2020. The data represents U.S. city averages. The base period was 1982-84. In 2016, the annual Consumer Price Index is projected to be at about 238.93.