condition	mean	min	max
4 h after light	2.3	2.3	2.3
8 h after light	32.6	26.2	39.0
12 h after light	10.55	9.8	11.3
4 h after dark	7.7	7.0	8.4
8 h after dark	11.1	3.2	19.0
12 h after dark	11.0	6.6	15.4