What are recommended heat rates for people?

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I'd like to add that I believe the ASHRAE Load Calculations Manual has expanded information on occupants that aren't standard male adults (I saw some of the tables in a Carrier Design Guide, I think). For example, if you're doing load calcs for FCUs or GSHPs for a K-6 school, having more accurate values for tiny humans helps. The President of the firm I worked for out of school scolded some of us younger engineers once for using the adult-male values in such a situation, so I tend to remember it. :)

Thanks a lot for your help! The mentioned recommendations perfectly fit for activity level, fraction radiant and sensible heat fractions. But what about work efficiency? Thanks again!