condition	mean	min	max
4 h after light	9.04264	8.46902	9.61626
8 h after light	5.93677	5.74209	6.13145
12 h after light	8.324165	7.02035	9.62798
4 h after dark	11.899595000000001	8.98629	14.8129
8 h after dark	12.064499999999999	11.369	12.76
12 h after dark	10.8339	10.343	11.3248