condition	mean	min	max
4 h after light	5.514165	4.87482	6.15351
8 h after light	5.451905	5.35748	5.54633
12 h after light	6.75718	6.62746	6.8869
4 h after dark	7.78839	7.31474	8.26204
8 h after dark	7.79986	7.77072	7.829
12 h after dark	7.271435	7.01945	7.52342