condition	mean	min	max
4 h after light	7.96629	7.74915	8.07934
8 h after light	7.85386	7.513210000000001	8.0455
12 h after light	8.03195	7.69813	8.238439999999999
4 h after dark	8.509596666666667	8.2559	8.66035
8 h after dark	8.670033333333333	8.24811	8.987039999999999
12 h after dark	8.964896666666666	8.74519	9.12856