Starting May 2009, the source has fixed the first day of each month as the release date of these indices. This will be so irrespective of whether it will fall on weekend or public holiday. This is set up by the China Federation of Logistics & Purchasing and National Bureau of Statistics and was first launched in July 2005. PMI reading above 50 points indicates that the manufacturing economy is generally expanding and that the economy is generally declining when the reading fells below 50 points. The manufacturing PMI is a composite index based on the diffusion indices for the five major components with the following weightings: new orders (30%), output (25%),employment (20%), supplier delivery times (15%), and inventories (10%).