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 0.0 0.0 0.0 12 h after light 0.09196566666666667 0.0 0.275897 3 h after dark 0.09262933333333334 0.0 0.277888 6 h after dark 0.3689213333333333 0.0 0.740148 9 h after dark 0.149882 0.0 0.449646 12 h after dark 0.0 0.0 0.0