condition	mean	min	max
4 h after light	9.12443	9.081380000000001	9.191
8 h after light	8.9416	8.86669	9.07969
12 h after light	8.85566	8.74204	9.00944
4 h after dark	9.1324	9.00845	9.25181
8 h after dark	9.129593333333334	9.02745	9.21647
12 h after dark	9.441086666666667	9.29005	9.52051