condition	mean	min	max
4 h after light	8.797886666666667	8.57768	8.9142
8 h after light	8.91347	8.85229	9.02501
12 h after light	9.15599	9.01905	9.342839999999999
4 h after dark	8.92333	8.711039999999999	9.09127
8 h after dark	8.853013333333333	8.74353	9.01413
12 h after dark	8.946436666666667	8.93913	8.951210000000001