The Consumer Price Index (IPC) offers a statistical measurement of the conjunctural evolution of the set of prices of the goods and services consumed by families and that are acquired at normal prices, in certain functions of consumption. The source of information is the monthly state-wide statistics produced by the INE. It offers both a general index and a price index by group of products or services, either for the State as a whole or for the Basque Country; it disseminates the annual averages and also the variations or increases between reference periods.