condition	mean	min	max
4 h after light	6.8	6.8	6.8
8 h after light	39.3	19.4	59.2
12 h after light	54.25	43.9	64.6
4 h after dark	18.6	15.7	21.5
8 h after dark	10.7	6.0	15.4
12 h after dark	24.1	6.0	42.2