condition	mean	min	max
4 h after light	9.379088	9.017043	9.741133
8 h after light	8.5458365	8.014509	9.077164
12 h after light	8.673181499999998	8.32932	9.017043
4 h after dark	8.917874999999999	8.818707	9.017043
8 h after dark	9.018703	8.076216	9.96119
12 h after dark	8.697195	8.697195	8.697195