Imagine that a contingent valuation study is done asking residents about their willingness to pay for a new Whirlydome in the twin cities metropolitan area, which has about 400,000 households. The households that were told the dome would cost them $400 per year had a probability of approval of 5%. Those that were told the dome would cost them $200 per year had a probability of approval of 40%. Those that were told that the dome would cost them $50 per year had a probability of approval of 80% and those that were told that the dome would cost them $10 per year had a probability of approval of 95%. Using these figures, calculate an estimate of the annual benefits associated with a new Whirlydome.