condition mean min max 4 h after light 49.97313333333334 33.4286 59.7404 8 h after light 65.5719 25.3535 89.8151 12 h after light 64.22596666666666 45.7199 79.9513 4 h after dark 74.1467 66.7308 87.2247 8 h after dark 55.16453333333333 37.4722 81.6618 12 h after dark 54.5784 49.0174 62.6786