Does Yvette Cooper not understand the question about household debt or is she being deliberate evasive?

What do you think of the smirk that plays Yvette Cooper's face as she thinks she has got away without answering Andrew Neill's question?

Yvette Cooper is just another robotic Labour Minister; promoted way above her abilities, content to receive a high income and allowances package in return for spouting whatever line her masters have given her to push. I despise Yvette Cooper and her ilk almost as much as I despise the real Labour turds who are in charge.

I want my country back.