condition	mean	min	max
4 h after light	6.01759	5.798080000000001	6.37297
8 h after light	5.889216666666667	5.72979	6.0715
12 h after light	5.77894	5.6770000000000005	5.83845
4 h after dark	5.97056	5.827319999999999	6.17127
8 h after dark	5.878089999999999	5.736759999999999	6.03174
12 h after dark	5.7631733333333335	5.6767199999999995	5.89214