condition mean min max 4 h after light 3.18694 2.89548 3.4784 8 h after light 3.4432650000000002 3.34403 3.5425 12 h after light 3.6703799999999998 3.38366 3.9571 4 h after dark 4.683286666666667 3.85423 5.79699 8 h after dark 3.56542 3.19666 4.01192 12 h after dark 3.1608033333333334 3.07592 3.24275