condition	mean	min	max
0 h after light	15.455449999999999	14.9922	15.9187
4 h after light	14.21245	12.5935	15.8314
8 h after light	17.2295	14.6646	19.7944
4 h after dark	23.97185	21.2512	26.6925
8 h after dark	21.80005	21.6323	21.9678
12 h after dark	18.71495	18.3912	19.0387