OUR STAFF REPORTER ISLAMABAD - Inflation based on SPI has increased by 15.88 per cent during the week ended on Thursday against the same period of last year, Federal Bureau of Statistics reported on Saturday. According to the latest inflation figures, the SPI based average inflation for all income groups had gone up by 0.56 per cent during the week ended on Thursday against the previous week. Meanwhile, inflation for lowest income group (earning only Rs 3000 per month) went up by 16.43 per cent during the period under review as compared to the same period of last year. Meanwhile it soared by 0.51 per cent on weekly basis. According to the data, inflation for income group earning (Rs 3001-5000) increased by 15.85 per cent followed by 15.07 per cent for the income group (Rs 5001-1200 per month) against the same period of previous year. Meanwhile, SPI based inflation enhanced by 15.48 per cent during the last week against the same period of last year. Inflation for higher income group surged by 0.52 per cent on weekly basis. Prices of 27 commodities increased only in seven days period, prices of five items reduced and prices of 21 goods remained unchanged during the last week. According to figures, per kg price of tomatoes increased to Rs 26.84 from Rs 21.58, per dozen price of eggs enhanced to Rs 70.63 from Rs 62.79, per kg chicken price surged to Rs 134.01 from Rs 130.10, per kg potatoes price soared to Rs 29.18 from Rs 28.54, price of 11-kg LPG cylinder went up to Rs 1145.85 from Rs 1129.29, per kg sugar price increased to Rs 69.49 from Rs 68.71, per kg rice basmati price enhanced to Rs 55.06 from Rs 54.49. Similarly per kg prices of moong pulse washed, beef, rice irri-6, gram pulse washed, mutton and wheat flour also increased by Re 1 during the last week against the previous week. Meanwhile, prices of five commodities including bananas, masoor pulse washed, garlic, mash pulse washed and red chillies decreased during the last week. However, prices of milk powdered, ghee, oil, salt, tea packet, petrol, diesel and kerosene remained unchanged during the week that ended on Thursday.