condition	mean	min	max
4 h after light	8.56367	8.43223	8.68473
8 h after light	9.321976666666666	9.13932	9.46579
12 h after light	9.112169999999999	9.0512	9.22059
4 h after dark	9.48485	9.09656	9.82288
8 h after dark	9.24598	9.057319999999999	9.340819999999999
12 h after dark	8.79923	8.62086	8.952069999999999