condition mean min max 4 h after light 46.4698 44.1834 48.7562 8 h after light 38.409 37.2758 39.5422 12 h after light 25.19925 24.5514 25.8471 4 h after dark 68.348 64.4152 72.6814 8 h after dark 76.7264 75.5785 78.9212 12 h after dark 88.62643333333334 86.692 90.6847