condition	mean	min	max
4 h after light	6.064373333333333	5.94395	6.28733
8 h after light	6.0038133333333334	5.6189800000000005	6.3754599999999995
12 h after light	5.94154	5.70119	6.16716
4 h after dark	6.069003333333333	5.95962	6.2817099999999995
8 h after dark	5.85231	5.3626	6.16043
12 h after dark	6.139806666666667	5.8253	6.5595