condition	mean	min	max
4 h after light	5.9805	4.7096	7.2514
8 h after light	7.19223	6.516	7.86846
12 h after light	8.500975	8.34947	8.65248
4 h after dark	9.58487	8.90714	10.2626
8 h after dark	9.49455	8.1143	10.8748
12 h after dark	7.99671	7.1048	8.88862