Rydym yn defnyddio mynegeion prisiau, megis y Mynegai Prisiau Defnyddwyr (CPI) i asesu chwyddiant - mesuriad o'r gyfradd cynnydd mewn prisiau ar gyfer nwyddau a gwasanaethau. Un modd o ddeall y CPI yw meddwl am fasged siopa fawr sy'n cynnwys detholiad o'r nwyddau a'r gwasanaethau a brynir gan aelwydydd. Mae'r CPI yn amcangyfrif newidiadau i gyfanswm cost y fasged hon.
The Consumer Prices Index including owner occupiers’ housing costs (CPIH) 12-month inflation rate was 1.9% in June 2019, unchanged from May 2019.
The largest downward contributions to change in the 12-month rate between May and June 2019 came from motor fuels, accommodation services and electricity, gas and other fuels, with prices in each category falling between May and June 2019 compared with price rises between the same two months a year ago.
The largest offsetting upward contributions came from clothing and food.
Price quote data and item indices that underpin consumer price inflation statistics are now published, giving users unprecedented access to the detailed data that is used in the construction of the UK's inflation figures. With effect from January 2017 Consumer price inflation publication, these data are published on a monthly basis showing the latest month.