condition	mean	min	max
4 h after light	9.017153333333333	8.87684	9.18944
8 h after light	9.242276666666667	9.03961	9.44288
12 h after light	9.33251	9.27714	9.37669
4 h after dark	9.444783333333334	9.23695	9.74003
8 h after dark	9.29229	9.16613	9.4626
12 h after dark	9.534040000000001	9.28508	9.851560000000001