condition	mean	min	max
4 h after light	6.2	6.2	6.2
8 h after light	21.55	17.3	25.8
12 h after light	24.6	9.7	39.5
4 h after dark	43.25	35.2	51.3
8 h after dark	17.0	11.4	22.6
12 h after dark	17.8	7.8	27.8