condition	mean	min	max
4 h after light	7.8215795	7.189747	8.453412
8 h after light	8.7669015	8.510785	9.023018
12 h after light	8.695449499999999	8.693988	8.696911
4 h after dark	8.179212	7.23693	9.121494
8 h after dark	8.2484875	8.139305	8.35767
12 h after dark	7.217695	7.217695	7.217695