condition	mean	min	max
4 h after light	9.837247999999999	9.649806	10.02469
8 h after light	9.031541	8.947513	9.115569
12 h after light	9.13096	8.929356	9.332564
4 h after dark	9.918977	9.446642	10.391312
8 h after dark	9.641629	9.183947	10.099311
12 h after dark	8.975705	8.975705	8.975705