condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0242588 0.018674 0.0298436 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.004240366666666667 0.0 0.0127211