condition	mean	min	max
4 h after light	9.153206666666666	9.04009	9.26607
8 h after light	9.02882	8.88313	9.26982
12 h after light	8.91998	8.8908	8.94037
4 h after dark	8.920906666666667	8.705680000000001	9.046339999999999
8 h after dark	8.91103	8.83119	9.01527
12 h after dark	8.81366	8.67417	8.88743