condition	mean	min	max
4 h after light	8.07179	7.9573100000000005	8.27362
8 h after light	7.796586666666666	7.570869999999999	7.99154
12 h after light	7.967443333333333	7.5786	8.16953
4 h after dark	7.903213333333333	7.87453	7.95075
8 h after dark	7.8206766666666665	7.72261	7.963480000000001
12 h after dark	7.61722	7.362889999999999	7.83332