condition	mean	min	max
4 h after light	4.770605	2.50677	7.03444
8 h after light	16.89105	15.1104	18.6717
12 h after light	15.867650000000001	14.2356	17.4997
4 h after dark	3.3279566666666667	3.00603	3.84173
8 h after dark	3.69395	3.25174	4.03155
12 h after dark	3.628146666666667	2.86867	4.02796