Not that I could find. Realistically, I'm not sure they would know anyway, or I would trust a number they came up with. For example, they might have some costs associated with GE getting sued, even if GE is not ultimately judged liable. Those suits might be brought in the US, and be only tangentially related to the disaster in Japan, and be more of the shareholder variety - who knows?
Definitely the $64 question, I wish I had all the answers.