On June 16th at 08:30GMT the Office for National Statistics published May’s retail sales report.
April’s value: 1.1%; May’s forecast: -0.5%
The “Retail Sales” report shows how the retail prices in British shops change in percentage terms over a certain period. The indicator helps to anticipate the perspectives of the UK consumer market. 
The “Retail Sales” indicator comes 1st in the list of all the types of economic activity in the country. It determines the “practical” side of the purchasing power of the country’s national currency. That is why currency traders and investors consider it a fairly significant indicator.
A decline in the index value usually anticipates some weakness of the British Pound.
The data are published approximately in 3 weeks after the reporting month is over.
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