condition	mean	min	max
4 h after light	6.020575	5.45835	6.5828
8 h after light	6.083665	6.04002	6.12731
12 h after light	5.35848	4.71199	6.00497
4 h after dark	7.42884	6.53259	8.00479
8 h after dark	8.577416666666666	8.31617	8.85772
12 h after dark	6.960403333333334	5.95498	7.60273