The year - over-year percent change in the cost of living has been reasonably low for the past five years, averaging about 1.3 percent on a monthly basis. (usfunds.com)
Then, whatever benefits you get will increase each year, because the benefit is increased based on annual changes in the cost of living. (money.stackexchange.com)
The goal of the CPI - U is to measure changes in the cost of living for all people living in a non-rural, city environment. (learnbonds.com)