condition	mean	min	max
4 h after light	8.591793333333333	8.45552	8.684619999999999
8 h after light	8.064116666666667	7.81197	8.211889999999999
12 h after light	7.503356666666667	7.18158	7.748060000000001
4 h after dark	7.4038200000000005	6.944319999999999	7.82368
8 h after dark	8.198030000000001	7.7506	8.51609
12 h after dark	8.662913333333334	8.58545	8.73432