These data provide up to date measures of turnoverwhich are deflated (to remove the effect of price changes) and, in some cases, seasonallyadjusted to yield the true underlying growth rates.For some industrial sectors,notably agriculture, electricity generation, banking and public administration,the estimates are based on information received directly from companies, industrybodies or other Government Departments.Further information on the compilationof the quarterly GDP statistics is available on the Scottish Executive website...