A long time. That's all I really know. And... sorry, but I can't really answer that. [She scratches the side of her head, feeling a bit awkward.] I, er... sort of had amnesia, before waking up at the very beginning of the war. All I know is that it's sometime in the 21st century.

[Okay so the amnesia thing isn't the truth, but she's... not really keen on talking about the truth right now. It's still a bit of a sore spot.]