condition mean min max 2 h after light 4.438621666666667 1.62001 7.88607 6 h after light 5.105895 2.95103 7.84773 10 h after light 4.85398 3.62657 7.00087 14 h after light 3.1398516666666665 2.5048 4.24004 18 h after light 3.83055 1.94766 5.58415 2 h after dark 2.41432 1.80291 3.61564