condition mean min max 4 h after light 2.164155 1.88225 2.44606 8 h after light 2.210395 1.65824 2.76255 12 h after light 2.44 1.96564 2.91436 4 h after dark 2.8926350000000003 2.76317 3.0221 8 h after dark 2.1639299999999997 1.96887 2.35899 12 h after dark 2.076055 1.93686 2.21525