condition mean min max 4 h after light 61.2603 60.0581 62.4625 8 h after light 49.7656 44.6462 54.885 12 h after light 62.503299999999996 59.4605 65.5461 4 h after dark 86.88553333333333 81.6097 89.5808 8 h after dark 81.57886666666667 73.7174 92.5068 12 h after dark 72.4517 69.8516 74.6161