condition	mean	min	max
4 h after light	5.63645	5.60515	5.68985
8 h after light	5.68861	5.5526599999999995	5.94434
12 h after light	5.814683333333334	5.62418	6.16213
4 h after dark	5.7314	5.61086	5.82621
8 h after dark	5.59297	5.3448	5.72766
12 h after dark	5.687523333333333	5.57022	5.822030000000001