condition	mean	min	max
4 h after light	8.08353	8.018889999999999	8.143180000000001
8 h after light	8.117923333333334	7.92282	8.31363
12 h after light	7.94636	7.88468	8.00005
4 h after dark	7.9128799999999995	7.743869999999999	8.03913
8 h after dark	8.011556666666667	7.8653	8.19621
12 h after dark	8.13457	7.995769999999999	8.25682