Rome, December 6 - Italian Premier Mario Monti said on Thursday he didn't think it useful to try and attribute blame for how the spread between Italian and German bonds has been doing. The spread between 10-year Italian bonds and the German ones are a barometer of Italy's borrowing costs in the eurozone crisis. ''I do not find it particularly interesting, nor do I find it useful especially if I do it, that of trying to attribute merits or responsibility'' in relation to how the spread has been faring, Monti said. Monti was speaking at a press conference in Rome following a cabinet meeting in which he played down speculation about his possible resignation amid a brewing government crisis. The spread rose almost 20 points on news that ex-premier Silvio Berlusconi was set to pull the plug on Monti and stand as premier again.