condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.020222966666666665 0.0 0.0606689 12 h after light 0.030615299999999998 0.0 0.0918459 3 h after dark 0.0 0.0 0.0 6 h after dark 0.04638066666666666 0.0 0.139142 9 h after dark 0.049916999999999996 0.0 0.149751 12 h after dark 0.0 0.0 0.0