condition	mean	min	max
0 h after light	6.635104999999999	6.61945	6.65076
4 h after light	5.999205	5.97107	6.02734
8 h after light	4.907575	4.62277	5.19238
4 h after dark	5.87268	5.60246	6.1429
8 h after dark	6.8735800000000005	6.76764	6.97952
12 h after dark	6.570265	6.23833	6.9022