condition	mean	min	max
4 h after light	6.17495	5.8215	6.41953
8 h after light	6.677156666666667	6.37774	6.88122
12 h after light	6.254096666666667	6.02003	6.5481300000000005
4 h after dark	6.29891	5.92626	6.559089999999999
8 h after dark	6.275883333333334	6.15445	6.48369
12 h after dark	6.293816666666666	5.83892	6.7911399999999995