DCP022415DU unbalanced loads

We are using these 2 watt converters in a product.  When using the dual output package, what is the max current per load.

 

Is it 1/2 rated power / voltage   or 1/15 = 66 ma max per output or is it acceptable to pull more from +15 and less from -15 as long as total power is less than 2 watts.  

 

Thanks,

 

Bill