condition mean min max 0 h after light 2.713775 2.24823 3.17932 4 h after light 3.273085 2.85837 3.6878 8 h after light 4.10801 2.66523 5.55079 4 h after dark 5.059805 4.42565 5.69396 8 h after dark 5.271929999999999 5.15733 5.38653 12 h after dark 2.208665 1.49414 2.92319