condition	mean	min	max
0 h after light	6.90057	6.53125	7.26989
4 h after light	8.020395	7.56493	8.47586
8 h after light	6.960475	6.02335	7.8976
4 h after dark	6.34626	5.59215	7.10037
8 h after dark	7.399535	7.03723	7.76184
12 h after dark	5.19894	4.18108	6.2168