condition mean min max 4 h after light 0.7403493333333333 0.353881 0.996557 8 h after light 1.1575333 0.0579999 2.30283 12 h after light 1.4784756666666665 0.577297 2.2817 4 h after dark 1.7353603333333334 0.530161 2.82629 8 h after dark 2.6649 1.57031 4.30713 12 h after dark 3.6368300000000002 3.1274 4.24329