condition	mean	min	max
4 h after light	8.451965999999999	8.142793	8.761139
8 h after light	8.930856	8.729618	9.132094
12 h after light	8.519499	8.277859	8.761139
4 h after dark	9.027939	8.761139	9.294739
8 h after dark	9.0564745	8.761139	9.35181
12 h after dark	10.08223	10.08223	10.08223