condition	mean	min	max
0 h after light	7.3673649999999995	7.17833	7.5564
4 h after light	8.934285	8.36315	9.50542
8 h after light	12.346350000000001	11.8032	12.8895
4 h after dark	18.45675	15.929	20.9845
8 h after dark	11.6	10.7782	12.4218
12 h after dark	8.86548	7.67636	10.0546