Explanatory Notes on Main Statistical Indicators

Gross Domestic Product Deflator measures the average annual rate of price change in the economy as whole for the periods shown.

Producers' or Wholesale Price Indices The Amount receivable by the producer from the purchaser for a unit of a good or service produced as output minus any value-added tax, or similar deductible tax, invoiced to the purchaser. It includes any transport charges invoiced separately by the producer. Indices shown for producer or wholesale prices are designed to monitor changes in prices of items at the first import commercial transaction, where a choice is available, preference is given to the PPI because the concept, weighing pattern, and coverage are likely to be more consistent with national accounts and industrial production statistics. In principle, the PPI should include service industries, but in practice it is limited to the domestic agriculture and industrial sectors. The prices should be farm-gate prices for the agriculture and industrial goods at various stages of production and distribution, inclusive of imports and import duties. Preference is given to indices that provide broad coverage of the economy, and the indices are computed using the Laspeyres formula.

Consumer Price Indices measures changes over time in the general level of prices of goods and services that a reference population acquires, uses or pays for consumption. A consumer prices index is estimated as a series of summary measures of the period-to-period proportional change in the prices of a fixed set of consumer goods and services of constant quantity and characteristics, acquired, used or paid for by the reference population. Each summary measure is constructed as a weighted average of a large number of elementary aggregate indices. Each of the elementary aggregate indices is estimated using a sample of prices for a defined set of goods and services obtained in, or by residents of, a specific region from a given set of outlets or other sources of consumption goods and services.