condition	mean	min	max
4 h after light	9.03611	8.84118	9.201210000000001
8 h after light	8.83417	8.56212	9.064969999999999
12 h after light	8.921586666666666	8.77565	9.09372
4 h after dark	8.990856666666666	8.86496	9.157589999999999
8 h after dark	8.85659	8.67309	8.97587
12 h after dark	8.78377	8.63377	8.91938