Even here in the US we don't use ABW much anymore - or at least I honestly cannot say when the last time I saw it in use. Everything is labeled by ABV anymore.
cdew, concerning Millter Lite, or any other major brand of beer, the alcohol content will vary on where it's sold (dependent on what's allowed by law). Some places it's 3.5% ABV, here in OH I think it's 5% (maybe 5.5%?) ABV.