condition	mean	min	max
0 h after light	3.90879	3.54563	4.27195
4 h after light	3.1196149999999996	3.02688	3.21235
8 h after light	3.152875	2.89161	3.41414
4 h after dark	6.128915	5.81095	6.44688
8 h after dark	4.907745	4.15265	5.66284
12 h after dark	4.399455	4.25861	4.5403