condition	mean	min	max
4 h after light	9.070573333333334	8.73252	9.42775
8 h after light	8.953043333333333	8.55609	9.45991
12 h after light	8.5215	8.3492	8.78099
4 h after dark	8.370239999999999	8.05213	8.718539999999999
8 h after dark	8.238103333333333	7.89462	8.63152
12 h after dark	8.33286	7.9318100000000005	8.97542