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).
In the three months to August 2019, moderate growth in the quantity bought continues at 0.6% when compared with the previous three months, with growth in non-store retailing being the main contributor to the increase.
The monthly growth rate in the quantity bought in August 2019 fell by 0.2%; non-store retailing was the largest contributor to this fall, partially offsetting the strong growth reported last month for this sector.
The year-on-year growth rate shows that the quantity bought in August 2019 increased by 2.7%; this is a slowdown compared to the stronger growth experienced earlier in the year which peaked at 6.7% in March 2019.