condition mean min max 0 h after light 3.091855 2.67028 3.51343 2 h after light 3.865245 3.56669 4.1638 4 h after light 2.953515 2.56247 3.34456 8 h after light 3.82111 2.91089 4.73133 12 h after light 6.51894 5.58815 7.44973 2 h after dark 7.228885 6.97414 7.48363 4 h after dark 5.81115 5.70329 5.91901 8 h after dark 4.907615 4.50517 5.31006 12 h after dark 2.87804 2.589 3.16708