condition	mean	min	max
4 h after light	9.5	9.5	9.5
8 h after light	45.3	39.8	50.8
12 h after light	36.25	34.1	38.4
4 h after dark	33.75	30.1	37.4
8 h after dark	31.75	19.8	43.7
12 h after dark	24.6	18.2	31.0