"[The authors] have calculated 5,000 stochastic simulations of the Pension Protection Act of 2006 yield curve, assuming current funding laws remain in place throughout this calculation and using Milliman's capital market assumptions.... Based on the stochastic simulations, it would appear that the 2016 plan year HATFA segment rates have already been determined.... [It] can reasonably be predicted that the 2017 rates will be the HATFA rates based on these simulations."