condition	mean	min	max
4 h after light	7.575043333333333	7.3484	7.94795
8 h after light	7.790760000000001	7.59665	7.97455
12 h after light	7.913296666666667	7.8712800000000005	7.9764
4 h after dark	7.2491699999999994	7.04339	7.364439999999999
8 h after dark	6.96419	6.6875100000000005	7.17962
12 h after dark	6.6818100000000005	6.525580000000001	6.78079