condition	mean	min	max
4 h after light	7.795540000000001	7.54121	8.201830000000001
8 h after light	7.612023333333333	6.940589999999999	8.34404
12 h after light	7.533203333333333	7.20655	7.80284
4 h after dark	7.4049700000000005	7.0989	7.6719100000000005
8 h after dark	7.485906666666667	7.16288	7.806489999999999
12 h after dark	7.8310933333333335	7.54502	8.034930000000001