Methodological improvementswere introduced to NFI estimates in 2002-03, so there may be a slight break in theNFI series in this period.There are two main sources ofinformation on farm incomes :The Farm Accounts Survey providesresults on average farm incomes at the national level, however the sample size of460 farms is insufficient to provide reliable or representative results at the localauthority level.The Total Income From Farming(TIFF) measure is compiled at a national level using a range of national data sources,as such TIFF estimates are not produced...