condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.07483066666666667 0.0 0.224492 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0