condition	mean	min	max
4 h after light	5.8	5.8	5.8
8 h after light	6.55	5.1	8.0
12 h after light	7.1	4.3	9.9
4 h after dark	19.400000000000002	6.1	32.7
8 h after dark	17.65	6.1	29.2
12 h after dark	15.899999999999999	5.1	26.7