condition	mean	min	max
4 h after light	50.3	50.3	50.3
8 h after light	16.5	11.1	21.9
12 h after light	55.3	49.2	61.4
4 h after dark	30.75	23.0	38.5
8 h after dark	30.65	26.8	34.5
12 h after dark	24.0	22.7	25.3