On average, domestic customers in Scotland account for around 56% of water volume supplied, and 65% of the volume of waste water treated:Water and Sewerage Charge revenues, Scotland (£ million) Actual 1996-97Actual1997-98Actual1998-99Forecast 1999-2000Forecast2000-01Domestic242.4260.8295.3326.9413.7Non Domestic249.62...