evidence: The discretionary income of Northern Ireland's lowest earning households have fallen a further 29.5% over the last year, from £28.12 to £19.83 per week, according to the latest figures from the Consumer Council. [...] NI's Disposable Income Falls To Seven-Year Low The disposable income of Northern Irish households fell by almost 28% to an average of £93 per week, representing a seven-year low, according to the latest figures from Asda's Income Tracker.