condition	mean	min	max
4 h after light	5.64273	5.51287	5.77259
8 h after light	4.92192	4.5437	5.30014
12 h after light	5.41264	5.36305	5.46223
4 h after dark	8.99243	8.36165	9.49282
8 h after dark	8.649086666666667	7.98258	9.1239
12 h after dark	7.303433333333333	6.81405	7.86071