condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.04810283333333334 0.0 0.288617 18 h after light 0.0 0.0 0.0 2 h after dark 0.03388566666666667 0.0 0.203314