condition mean min max 4 h after light 0.9668224999999999 0.948596 0.985049 8 h after light 1.0618595 0.968179 1.15554 12 h after light 2.5962899999999998 2.07873 3.11385 4 h after dark 2.8137133333333333 2.69433 2.94157 8 h after dark 1.0977343333333334 0.881153 1.29544 12 h after dark 0.7707063333333333 0.341247 1.06995