condition mean min max 4 h after light 1.390087 0.659304 2.12087 8 h after light 2.146305 1.9731 2.31951 12 h after light 2.62458 1.63368 3.61548 4 h after dark 3.1392466769333334 3.08e-08 4.92849 8 h after dark 2.505656666666667 0.0 4.40974 12 h after dark 1.7885966841 5.23e-08 3.07045