condition	mean	min	max
4 h after light	6.3936	5.57863	7.20857
8 h after light	6.193055	6.08246	6.30365
12 h after light	7.414485	7.20587	7.6231
4 h after dark	10.29983	9.84739	10.6186
8 h after dark	12.5536	12.2523	12.8049
12 h after dark	8.221256666666667	8.03941	8.42631