condition	mean	min	max
1 h after light	15.75812369	12.40297847	19.11326891
3 h after light	16.783590320000002	12.54587817	19.10925571
5 h after light	17.754466116666666	16.01256524	19.36046752
7 h after light	17.020805106666668	15.08047662	18.29946652
9 h after light	18.00684117333333	15.72376406	20.17229281
11 h after light	15.303527043333334	12.47387766	17.69034423
13 h after light	15.6561501	15.38444894	15.86485198
15 h after light	16.300802593333334	13.45019595	18.75861303
1 h after dark	19.61549236	18.13950955	20.46716738
3 h after dark	18.309421643333334	16.81271783	19.93230644
5 h after dark	18.239948076666668	16.39861734	19.16882711
7 h after dark	19.58064346333333	16.18587924	21.84213179