condition	mean	min	max
4 h after light	6.59073	6.36407	6.83482
8 h after light	6.594526666666667	6.34438	7.014139999999999
12 h after light	6.48351	6.3821699999999995	6.67422
4 h after dark	6.639256666666666	6.4898	6.88398
8 h after dark	6.568903333333333	6.49506	6.687989999999999
12 h after dark	6.550903333333333	6.46261	6.6010800000000005