condition mean min max 4 h after light 3.4020276666666667 3.3479080000000003 3.505846 8 h after light 2.4370293333333333 1.525727 3.0640970000000003 12 h after light 1.5931256666666667 1.407046 1.7145849999999998 16 h after light 3.354001 3.059582 3.778687 4 h after dark 2.794409 2.36702 3.145713 8 h after dark 1.6983833333333336 1.6006790000000002 1.7518470000000002