condition mean min max 0 h after light 0.6618044999999999 0.646508 0.677101 4 h after light 0.936849 0.598858 1.27484 8 h after light 1.22378 1.22109 1.22647 4 h after dark 1.12788 1.09674 1.15902 8 h after dark 1.002532 0.963144 1.04192 12 h after dark 0.594587 0.557598 0.631576