condition	mean	min	max
4 h after light	2.0	2.0	2.0
8 h after light	26.05	23.6	28.5
12 h after light	14.15	7.2	21.1
4 h after dark	12.15	8.8	15.5
8 h after dark	6.65	2.3	11.0
12 h after dark	1.3	1.1	1.5