condition	mean	min	max
0 h after light	7.013835	6.73184	7.29583
4 h after light	7.4722	6.48343	8.46097
8 h after light	11.83905	11.1889	12.4892
4 h after dark	15.139800000000001	14.4723	15.8073
8 h after dark	12.9817	12.5852	13.3782
12 h after dark	7.624515000000001	6.90256	8.34647