condition mean min max 4 h after light 5.193586666666667 3.38686 6.50406 8 h after light 2.031928333333333 0.578675 3.63177 12 h after light 1.425613 0.884029 2.2863 4 h after dark 3.26681 1.95741 3.96955 8 h after dark 3.554056666666667 2.97067 4.07454 12 h after dark 8.78622 6.78221 11.0931