condition mean min max 0 h after light 1.5717500000000002 1.49042 1.65308 4 h after light 1.559258 0.673746 2.44477 8 h after light 1.24078 1.00964 1.47192 4 h after dark 1.4663135 0.324707 2.60792 8 h after dark 2.04333 1.97016 2.1165 12 h after dark 1.22376 1.1556 1.29192