condition	mean	min	max
4 h after light	3.8	3.8	3.8
8 h after light	19.25	5.8	32.7
12 h after light	6.35	3.3	9.4
4 h after dark	24.2	7.0	41.4
8 h after dark	3.7	2.9	4.5
12 h after dark	10.1	9.2	11.0