condition	mean	min	max
4 h after light	4.8	4.8	4.8
8 h after light	3.8	2.4	5.2
12 h after light	34.25	29.4	39.1
4 h after dark	27.35	20.0	34.7
8 h after dark	16.35	7.2	25.5
12 h after dark	11.0	2.0	20.0