condition	mean	min	max
4 h after light	8.320261	8.192811	8.447711
8 h after light	8.5284725	8.123692	8.933253
12 h after light	9.4365615	9.278954	9.594169
4 h after dark	11.876345	11.103769	12.648921
8 h after dark	10.399648	9.806612	10.992684
12 h after dark	6.759453	6.759453	6.759453