ISLAMABAD -The weekly inflation, measured by Sensitive Price Indicator (SPI), witnessed an increase of 1.80 percent for the combined consumption group during the week ended on March 22, the Pakistan Bureau of Statistics (PBS) reported on Friday. The SPI for the week under review in the above-mentioned group was recorded at 250.66 points as compared to 246.22 points during the past week, according to PBS data. As compared to the corresponding week of last year, the SPI for the combined consumption