condition	mean	min	max
4 h after light	6.00844	5.75681	6.3996900000000005
8 h after light	6.017836666666667	5.81543	6.32057
12 h after light	5.93716	5.8137300000000005	6.15545
4 h after dark	6.0160100000000005	5.95139	6.1100900000000005
8 h after dark	5.964986666666666	5.791519999999999	6.11276
12 h after dark	5.960423333333333	5.72727	6.27859