Summary: Retail sales slump in April, reversing March’s spike; spending on food drops back below pre-stockpiling level; economists expect better May. Growth figures of domestic retail sales have been declining since 2014 and they reached a low-point in September 2017 when they registered an annual growth rate of just 1.5%. They then began increasing for about a year, only to stabilise at around 3.0% to 3.5% through late 2018...