condition mean min max 0 h after light 7.11303 6.55781 7.66825 2 h after light 1.66192 1.20818 2.11566 4 h after light 1.61356 1.41689 1.81023 8 h after light 1.068365 1.04691 1.08982 12 h after light 1.33784 1.16157 1.51411 2 h after dark 1.0814745 0.843719 1.31923 4 h after dark 1.2966 1.01426 1.57894 8 h after dark 2.34976 2.24672 2.4528 12 h after dark 4.89939 4.30467 5.49411