condition mean min max 4 h after light 0.02400405 0.0 0.0480081 8 h after light 0.0 0.0 0.0 12 h after light 0.03397595 0.0 0.0679519 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0159837 0.0 0.0479511 12 h after dark 0.0223483 0.0 0.0670449