condition	mean	min	max
4 h after light	8.31958	7.81642	8.82274
8 h after light	6.4630849999999995	6.37738	6.54879
12 h after light	7.529685000000001	7.26457	7.7948
4 h after dark	9.047655	8.47413	9.62118
8 h after dark	9.548034999999999	9.32255	9.77352
12 h after dark	9.210664999999999	8.93221	9.48912