ISLAMABAD: Short-term inflation, measured by the Sensitive Price Index (SPI), rose 14.52 per cent year on year in the week ending May 14, largely driven by higher retail prices for perishable food products, according to official data released on Friday. The SPI recorded a broad-based increase, underscoring sustained pressure on the cost of living. The rise was driven largely by steep increases in key items, including petrol (64.23pc), diesel (61.61pc), electricity charges (52.58pc), wheat flour (57.56pc), and LPG (48.34pc).