condition mean min max 0 h after light 5.69117 5.46235 5.91999 4 h after light 5.4844550000000005 5.45278 5.51613 8 h after light 3.5021 3.19819 3.80601 4 h after dark 3.60332 3.2896 3.91704 8 h after dark 3.33253 3.18373 3.48133 12 h after dark 3.55839 3.53844 3.57834