condition	mean	min	max
4 h after light	8.40245	8.18046	8.56878
8 h after light	8.41488	8.35425	8.53547
12 h after light	8.44552	8.39443	8.51403
4 h after dark	8.72488	8.56375	8.86688
8 h after dark	8.813733333333333	8.645489999999999	9.05638
12 h after dark	9.12737	8.96218	9.2377