condition	mean	min	max
4 h after light	15.2294	14.9806	15.4782
8 h after light	4.45533	4.33649	4.57417
12 h after light	4.214725	3.89172	4.53773
4 h after dark	3.133545	2.81067	3.45642
8 h after dark	9.37923	8.42076	10.3377
12 h after dark	10.804549999999999	10.5563	11.0528