condition	mean	min	max
4 h after light	9.213692	8.50903	9.918354
8 h after light	8.294507	8.217099	8.371915
12 h after light	7.884043500000001	7.462105	8.305982
4 h after dark	8.1248865	7.613473	8.6363
8 h after dark	8.542624499999999	8.371915	8.713334
12 h after dark	8.207992	8.207992	8.207992