Caiff busnesau sy'n gwerthu nwyddau'n uniongyrchol i'r cwsmeriaid sy'n eu defnyddio eu diffinio fel manwerthwyr. Yr ystadegyn allweddol ar gyfer manwerthu yw'r Mynegai Gwerthiannau Manwerthu (RSI), a gyhoeddir yn fisol. Mae data yn y RSI yn ymdrin â gwariant ar nwyddau yn unig (mewn siopau ac ar-lein). Mae data am wario ar wasanaethau ar gael ym Mynegai Gwasanaethau (IoS).
Retail sales volumes declined by 1.4% between April and May 2021 following a sharp increase in April when retail restrictions were eased; despite the monthly decline, over April and May combined, average total retail sales volumes were still 7.7% higher than in March 2021, and were 9.1% higher than in February 2020 before the impact of the coronavirus (COVID-19) pandemic.
The largest contribution to the monthly decline in May 2021 came from food stores where sales volumes fell by 5.7%; anecdotal evidence suggests the easing of hospitality restrictions had had an impact on sales as people returned to eating and drinking at locations such as restaurants and bars.
Non-food stores reported a 2.3% increase in monthly sales volumes in May 2021 with household goods stores (for example, hardware and furniture stores) and “other” non-food stores reporting the largest growth of 9.0% and 7.7% respectively.