What is the fastener spacing on the 12 ft. SM-Rib Galvalume Steel 29-Gauge Roof/Siding Panel?

The vertical fastener spacing is given in the table on the fastening schedule pdf on the product page 

For panel edges that are by eaves, ridges, and valleys, there are two screws per each rib. For all other sections, there is one screw to the right of the rib. The vertical fastener spacing is given in the table on the fastening schedule pdf on the product page and has no less than 24” on center.