Stats SA set out to re-engineer the Producer Price Index (PPI) within its strategic plan. Resources were prioritised to fund this activity. The new PPI will be launched during the 2012/13 financial year. Further improvements include industry-based PPI's, which require additional funding over the medium term. Stats SA conducts a five-yearly Income and Expenditure Survey (IES), and the expenditure module is used to determine the weights of the Consumer Price Index (CPI).