condition	mean	min	max
4 h after light	6.61352	2.90395	10.2494
8 h after light	4.47617	1.02699	8.88993
12 h after light	4.399983333333333	2.55682	6.26966
4 h after dark	6.9166099999999995	5.62442	7.77818
8 h after dark	8.772996666666668	4.31238	12.4118
12 h after dark	8.613993333333333	7.43863	10.6254