condition mean min max 0 h after light 0.309751 0.264106 0.355396 2 h after light 0.677412 0.558376 0.796448 4 h after light 0.328302 0.308916 0.347688 8 h after light 1.828275 1.72034 1.93621 12 h after light 1.970245 1.67944 2.26105 2 h after dark 1.4370349999999998 1.36123 1.51284 4 h after dark 1.2588195 0.698059 1.81958 8 h after dark 0.492509 0.358088 0.62693 12 h after dark 0.5751235 0.338912 0.811335