condition mean min max 0 h after light 1.0649335 0.557367 1.5725 2 h after light 1.503722 0.746184 2.26126 4 h after light 1.251705 1.22923 1.27418 8 h after light 0.701191 0.51803 0.884352 12 h after light 2.671925 1.33578 4.00807 2 h after dark 3.080245 3.07242 3.08807 4 h after dark 4.59376 4.58007 4.60745 8 h after dark 4.498025 4.3527 4.64335 12 h after dark 1.928445 1.28214 2.57475