condition	mean	min	max
4 h after light	8.791564999999999	8.75738	8.82575
8 h after light	9.464835	8.86127	10.0684
12 h after light	12.55955	11.5175	13.6016
4 h after dark	18.37825	18.0683	18.6882
8 h after dark	16.21965	15.8634	16.5759
12 h after dark	12.52795	12.0267	13.0292