|Unit||Index 2010=100, NSA|
|Adjustments||Not Seasonally Adjusted|
It measures changes in prices in the manufacturing and distribution sector of the economy and tends to lead the consumer price index by 60 to 90 days. The index is often quoted separately for food and industrial products.
Wholesale Price data collected from 33 provincial capital cities and 111 other potential cities/towns, assumed to have major companies and traded varied goods.
Respondents are selected from companies considered representative enough on trading commodities, so that all commodities covered could represent the Wholesale Price for each province.
The data is collected directly from respondents every month, by direct interview. The Wholesale Price Index (WPI) is disaggregated into five commodity groups: Agriculture, Manufacturing, Mining and Quarrying, Imports and Exports, where each sector consists of subcommodity groups. The number of commodities in each group is presented in brackets. The total number of commodities is 257.
Data is revised when new data becomes available.
1/ The periodicity and timeliness of the production index data is brought into observance. Since 2000 figures had used 2000 as numeraire (2000=100).