condition mean min max 3 h after light 1.3136533333333333 1.16425 1.55506 6 h after light 0.898834 0.748443 1.00948 9 h after light 0.44471266666666665 0.210666 0.647296 12 h after light 0.69169875 0.267717 1.54349 3 h after dark 0.827431 0.382853 1.16961 6 h after dark 0.7181153333333333 0.599464 0.850528 9 h after dark 1.3101816666666666 0.565643 2.44075 12 h after dark 1.5234450000000002 1.47611 1.57078