User blog comment:AKFrost/Halloween Conq Leaks/@comment-20426317-20131011200616/@comment-212.220.206.50-20131012045447

You could try estimating it using the last event data

https://docs.google.com/spreadsheet/ccc?key=0ApBfSERtRL-0dGFncGlkVWtkMU90V2dYWjZKNlNQVnc&usp=sharing