condition	mean	min	max
4 h after light	6.033099999999999	6.03011	6.03609
8 h after light	5.3693100000000005	5.21701	5.52161
12 h after light	6.44494	6.32473	6.56515
4 h after dark	6.38889	5.81884	6.95894
8 h after dark	8.655465	7.58895	9.72198
12 h after dark	7.982559999999999	7.78253	8.18259