A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 223.1-cm and a standard deviation of 2.3-cm. For shipment, 8 steel rods are bundled together.

Find P₂₃, which is the average length separating the smallest 23% bundles from the largest 77% bundles.

 P₂₃ = cm Round to 2 decimal places.