condition	mean	min	max
0 h after light	8.38222	8.2482	8.51624
4 h after light	9.59879	9.00368	10.1939
8 h after light	12.8839	12.7189	13.0489
4 h after dark	12.370149999999999	11.7234	13.0169
8 h after dark	11.09295	10.8316	11.3543
12 h after dark	9.50298	9.3884	9.61756