condition	mean	min	max
0 h after light	6.742725	5.28603	8.19942
4 h after light	2.21931	2.08493	2.35369
8 h after light	5.134145	5.06101	5.20728
4 h after dark	12.1644	11.6011	12.7277
8 h after dark	7.840965000000001	7.6209	8.06103
12 h after dark	6.83361	5.66368	8.00354