condition	mean	min	max
4 h after light	1.3	1.3	1.3
8 h after light	19.6	8.3	30.9
12 h after light	10.95	9.3	12.6
4 h after dark	10.15	3.6	16.7
8 h after dark	5.7	5.0	6.4
12 h after dark	25.15	22.1	28.2