condition mean min max 0 h after light 15.776950000000001 15.2299 16.324 4 h after light 4.860025 4.16112 5.55893 8 h after light 11.629999999999999 10.9479 12.3121 4 h after dark 24.2756 23.2525 25.2987 8 h after dark 22.68115 21.6696 23.6927 12 h after dark 13.95035 12.3384 15.5623