KARACHI (Reuters) - Pakistans foreign exchange reserves rose to $14.37 billion in the week ending on Feb. 20 from $14.32 billion the previous week, an SBP official said on Thursday. Reserves held by the State Bank of Pakistan rose to $10.52 billion from $10.50 billion a week earlier, while those held by commercial banks rose to $3.85 billion from $3.82 billion the previous week, said Syed Wasimuddin, chief spokesman for the State Bank of Pakistan. The latest data did not include $349.3 million received from the United States this week, Wasimuddin said. That would be reflected in next weeks data. Pakistans foreign reserves hit a record high of $16.5 billion in October 2007 but fell steadily to $6.6 billion by November 2008, largely because of a soaring import bill.