condition	mean	min	max
4 h after light	3.3	3.3	3.3
8 h after light	9.65	3.1	16.2
12 h after light	25.8	22.3	29.3
4 h after dark	13.05	8.1	18.0
8 h after dark	21.0	9.1	32.9
12 h after dark	34.15	7.9	60.4