condition	mean	min	max
4 h after light	6.3	6.3	6.3
8 h after light	13.7	3.7	23.7
12 h after light	19.35	8.8	29.9
4 h after dark	15.95	4.2	27.7
8 h after dark	7.300000000000001	6.3	8.3
12 h after dark	12.4	2.0	22.8