condition	mean	min	max
0 h after light	3.8068850000000003	3.64994	3.96383
4 h after light	8.995655	8.39189	9.59942
8 h after light	8.17559	7.93624	8.41494
4 h after dark	4.24884	3.99931	4.49837
8 h after dark	4.224795	4.0708	4.37879
12 h after dark	3.98842	3.6997	4.27714