Okay, thank you.
We've got some more detailed questions now on understanding, from Siân Gwenllian.
Just to drill down rather deeper into the issue of the variability in the way in which the Welsh bac is provided, could you explain why you think that this inconsistency is happening, and then what the impact of the inconsistency and variability is on the value that learners attach to the bac and their understanding of it?
I think the variability can be perhaps explained by the fact that it's a new type of qualification, the fact that different schools have adopted it at different rates—