condition	mean	min	max
0 h after light	12.8289	12.1603	13.4975
4 h after light	10.12285	10.0925	10.1532
8 h after light	10.419735	9.58957	11.2499
4 h after dark	17.1167	16.5481	17.6853
8 h after dark	14.60365	14.5424	14.6649
12 h after dark	12.09675	11.7157	12.4778