condition	mean	min	max
4 h after light	11.0	11.0	11.0
8 h after light	13.6	0.8	26.4
12 h after light	1.75	1.6	1.9
4 h after dark	17.5	16.7	18.3
8 h after dark	4.3	1.4	7.2
12 h after dark	8.6	2.2	15.0