STAFF REPORTER ISLAMABAD The exchange rate of Pakistani rupee against US dollar witnessed decrease of 10 paisa in interbank on Friday and traded at Rs 158.67 against Rs 158.57 on last trading day, State Bank of Pakistan (SBP) reported. However, according to Forex Association of Pakistan the buying and selling rates of Dollar in open market were recorded at Rs 158 and Rs 159.5 respectively. The SBP further reported that in interbank, the price of Euro depreciated by 99 paisa and traded at Rs 171.18 against the last closing of Rs 172.17 on last trading day.