condition mean min max 4 h after light 71.4505 67.8585 75.0425 8 h after light 58.3211 56.2274 60.4148 12 h after light 76.0357 70.2459 81.8255 4 h after dark 86.8573 84.6523 89.2659 8 h after dark 93.62623333333333 93.2084 94.4522 12 h after dark 81.087 74.747 84.7987