ISLAMABAD The Sensitive Price Indicator (SPI) based inflation surged to 17.31 percent during the week ending on Saturday over the same period last year, Federal Bureau of Statistics (FBS) reported on Monday. According to the latest figures, SPI inflation for all income groups has recorded at 17.31 percent in the previous week over the corresponding period of last year. The maximum impact of SPI increase during last one year has been observed for the high-income group earning more than Rs12,001 per month, which rose by 18.71 percent. An increase of 15.32 percentage points was noted in inflation for the lowest income group earning up to Rs3,000 per month, while the SPI inflation increased by 15.30 percent for the income group (Rs5,001-Rs12,000). According to the data inflation for lower middle-income group (Rs3,001 and Rs5,000) enhanced by 15.87 percent. The inflation increased by 0.14 percentage points for the low income group during the week under review against the previous week, while the inflation increased by 0.08 percent for income group (Rs3001- Rs5, 000), and it rose by 0.04 percent for the group earning Rs5, 001- Rs12, 000 per month). The SPI decreased by 0.02 percent for the higher income group earning more than Rs12, 000 per month. Out of the sample of 53 kitchen items prices collected from 25 urban centres, 26 items showed increase in prices, 10 items registered decline and the prices of 18 items remained unchanged as compared to previous week. The prices of the main items that registered increase are tomatoes; moong pulse washed, bananas, potatoes, red chillies, curd, LPG (11kg cylinder), salt, garlic, fresh milk, vegetable ghee, cooking oil, mutton, gur, mash pulse washed, beef, firewood, and vegetable ghee loose. Meanwhile the prices following items were decrease in the last week including egg, chicken, onions, gram pulse washed, masoor pulse washed, wheat flour average quality, sugar, rice irri-6, rice basmati broken and kerosene.