condition	mean	min	max
4 h after light	4.295395	4.0807	4.51009
8 h after light	4.524495	4.19869	4.8503
12 h after light	2.557665	2.40696	2.70837
4 h after dark	6.21157	5.69776	7.11934
8 h after dark	3.4158733333333333	2.76053	4.72627
12 h after dark	5.005476666666667	4.86874	5.12267