condition	mean	min	max
4 h after light	6.726515	6.24184	7.21119
8 h after light	6.586975000000001	5.89182	7.28213
12 h after light	7.153779999999999	6.95482	7.35274
4 h after dark	8.4901	8.38726	8.5862
8 h after dark	7.790346666666667	7.54129	8.1363
12 h after dark	6.405233333333333	5.73649	6.81517