productivity rate in Planning Planet (please explain)

hi,


Can someone explain the following productivity rate in planning planet


337 Metal KwikStage, 5 Boards with 2m lifts 11.1 11.9 12.5 m run/hr
338 Metal KwikStage, 5 Boards with 3m lifts 9.1 10.0 10.5 m run/hr
339 Metal KwikStage, House Scaffold with 3 lifts 2.8 3.2 3.8 m run/hr
340 Metal Tube and Fittings, 5-6 Boards wide 3.2 3.7 4.6 m run/hr
341 Tube and Fitting Platforms, 50-250m3 10.6 12.5 18.5 m3/hr
342 Tube and Fitting Platforms, 250-1000m3 18.5 22.5 24.5 m3/hr
343 Tube and Fitting Platforms, over 1000m3 24.5 30.0 33.5 m3/hr
can I use this for reference in steel tube scaffolding erection for bridge falsework?

thanks

kier