condition mean min max 0 h after light 147.187 146.35 148.024 4 h after light 90.75205 90.0465 91.4576 8 h after light 23.5006 23.1278 23.8734 4 h after dark 15.499199999999998 14.158 16.8404 8 h after dark 67.42055 65.278 69.5631 12 h after dark 140.2195 125.366 155.073