The CPI-E is essentially a price index for the elderly. The CPI-E was developed by the Bureau of Labor Statistics (BLS) and is intended to measure price changes in a basket of goods and services that are relevant to Americans 62 years of age and older. The composition of the CPI-E is different from other BLS indexes such as the consumer price index for urban consumers (CPI-U) and the consumer price index for wage earners and clerical workers (CPI-W). For example, health care costs account for 11 percent of the CPI-E and only 5.6 percent of the CPI-W. Those who advocate for the interests of retirees argue that Social Security cost of living increases (COLA) should be based on a price index such as the CPI-E that provide an accurate gauge of the rate of inflation that is relevant to retirees. At the moment, Social Security COLA increases are based on the CPI-W--not the CPI-E.