condition mean min max 0 h after light 2.75274 2.49548 3.01 4 h after light 2.079205 2.00939 2.14902 8 h after light 2.7129000000000003 2.36181 3.06399 4 h after dark 2.65462 2.14916 3.16008 8 h after dark 3.440415 3.0667 3.81413 12 h after dark 2.87295 2.63629 3.10961