condition mean min max 0 h after light 7.428190000000001 6.63604 8.22034 2 h after light 7.094609999999999 6.7389 7.45032 4 h after light 3.941345 3.69464 4.18805 8 h after light 4.59016 3.94297 5.23735 12 h after light 5.766935 5.20412 6.32975 2 h after dark 7.76461 6.91915 8.61007 4 h after dark 8.101135 7.95077 8.2515 8 h after dark 8.652915 7.59239 9.71344 12 h after dark 8.465364999999998 8.34508 8.58565