condition mean min max 0 h after light 0.01774575 0.0 0.0354915 4 h after light 0.0 0.0 0.0 8 h after light 0.0891463 0.0701016 0.108191 4 h after dark 0.052399 0.0 0.104798 8 h after dark 0.052485649999999995 0.0351865 0.0697848 12 h after dark 0.03499535 0.03461 0.0353807