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 June 2019, the quantity bought increased by 0.7%, with growth across all sectors except food stores and department stores; however, this was a slowdown from the stronger growth of 1.6% in the three months to May 2019.
The quantity bought in June 2019 increased by 1.0% when compared with May 2019; non-food stores provided the largest contribution to this growth.
The year-on-year growth rate shows that the quantity bought in June 2019 increased by 3.8%, with growth across all sectors except department stores, while May 2019 was at 2.2% for the year-on-year growth rate.