condition mean min max 4 h after light 6.3617 4.42213 8.20218 8 h after light 5.617763333333333 2.28684 7.88365 12 h after light 5.848046666666667 3.27224 9.14977 4 h after dark 7.67378 6.67856 8.66394 8 h after dark 5.21385 4.06509 6.03317 12 h after dark 5.487866666666666 5.37582 5.59183