condition mean min max 4 h after light 3.8613299999999997 3.31448 4.40818 8 h after light 2.989595 2.67389 3.3053 12 h after light 3.845945 3.7388 3.95309 4 h after dark 4.621715 3.89167 5.35176 8 h after dark 3.66847 3.64634 3.6906 12 h after dark 4.6248000000000005 4.24931 5.00029