For the weight of soils and stones disposed at the lower rate of tax, there was a 13% increase from the same quarter a year earlier, to 46 thousand tonnes.
Ar gyfer pwysau priddoedd a cherrig a waredwyd ar y gyfradd dreth is, bu cynnydd o 13% o'r un chwarter flwyddyn ynghynt, i 46 mil o dunelli.