EBU Single Rulebook Q&A 21 December 2015 2015_2534 Relevant time period to determine default rate and loss rate

Is it correct that the default rate and the loss rate for each rating grade has to be calculated based on the defaults of assets which belonged to the respective rating grade one year before the reference date (see description of c190), whereas the exposure value (110), LGD (130) , RWA (170) etc. have to be reported for the reference date?