It's the supermarket success story of the year – sales at German discounter Aldi have risen above £8bn in the past year, which is up by around 13% on last year's figures. It's definitely not the same joyful tale for Tesco, Sainsbury's, Morrisons et al who have seen much smaller growth for 2016. Asda, which has always prided itself on being the “cheapest” of the big supermarket chains saw a growth of only 1% last year.