condition	mean	min	max
4 h after light	8.94713	8.858939999999999	9.11324
8 h after light	9.036850000000001	8.96147	9.09247
12 h after light	9.408266666666666	9.328	9.467319999999999
4 h after dark	9.227173333333333	9.21367	9.24128
8 h after dark	9.15512	9.05251	9.24774
12 h after dark	9.073243333333334	9.0079	9.147910000000001