condition	mean	min	max
4 h after light	9.52442	9.3784	9.64436
8 h after light	9.75625	9.67159	9.86806
12 h after light	9.565993333333333	9.37292	9.67797
4 h after dark	9.045313333333333	8.876339999999999	9.1494
8 h after dark	9.221343333333333	9.04849	9.313139999999999
12 h after dark	8.877623333333334	8.65737	9.092260000000001