condition	mean	min	max
4 h after light	41.4	41.4	41.4
8 h after light	9.3	7.0	11.6
12 h after light	3.15	2.9	3.4
4 h after dark	2.4	2.0	2.8
8 h after dark	2.35	2.2	2.5
12 h after dark	19.85	5.2	34.5