condition	mean	min	max
4 h after light	9.790253333333334	9.72748	9.88067
8 h after light	9.613273333333334	9.52949	9.67026
12 h after light	9.6084	9.49115	9.691510000000001
4 h after dark	9.27909	9.19557	9.34779
8 h after dark	9.0338	8.9259	9.19177
12 h after dark	9.04593	8.99348	9.147310000000001