condition	mean	min	max
4 h after light	6.552905000000001	5.91445	7.19136
8 h after light	6.855195	6.82358	6.88681
12 h after light	8.125415	8.0472	8.20363
4 h after dark	10.28154	9.12558	11.4375
8 h after dark	8.640979999999999	8.24185	9.04011
12 h after dark	8.51757	8.4268	8.60834