condition	mean	min	max
4 h after light	5.68507	4.6652	6.70494
8 h after light	5.79636	5.10247	6.49025
12 h after light	5.416395	5.0687	5.76409
4 h after dark	8.32127	6.83313	9.76356
8 h after dark	7.937946666666667	6.70625	9.28444
12 h after dark	6.576546666666666	6.3762	6.86272