condition	mean	min	max
4 h after light	9.236	9.17828	9.281989999999999
8 h after light	9.015030000000001	8.93936	9.08425
12 h after light	8.997436666666665	8.96839	9.04533
4 h after dark	9.114813333333332	9.0633	9.172939999999999
8 h after dark	9.189586666666667	8.96747	9.42522
12 h after dark	9.154496666666667	8.94595	9.2757