condition mean min max 0 h after light 1.2380399999999998 1.13499 1.34109 4 h after light 1.65951 1.48265 1.83637 8 h after light 1.61544 1.24422 1.98666 4 h after dark 2.63571 2.14366 3.12776 8 h after dark 1.985655 1.90764 2.06367 12 h after dark 1.90991 1.77285 2.04697