condition	mean	min	max
0 h after light	6.276125	6.18972	6.36253
4 h after light	8.629215	8.55541	8.70302
8 h after light	9.25631	8.82107	9.69155
4 h after dark	8.31736	7.4535	9.18122
8 h after dark	9.321815	7.84543	10.7982
12 h after dark	7.00854	6.23516	7.78192