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 0.03138673333333333 0.0 0.0941602 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.023003366666666667 0.0 0.0690101 9 h after dark 0.023288566666666666 0.0 0.0698657 12 h after dark 0.0 0.0 0.0