condition mean min max 3 h after light 1.209787 0.624351 1.64254 6 h after light 3.2467266666666665 2.01584 4.17312 9 h after light 3.5740466666666664 2.78946 4.69037 12 h after light 3.65789 1.47504 8.91393 3 h after dark 0.899682 0.78569 1.06624 6 h after dark 0.535867 0.321201 0.727237 9 h after dark 2.74967 2.10259 3.67982 12 h after dark 12.83979 8.78448 16.8951