condition	mean	min	max
0 h after light	15.729	15.5702	15.8878
4 h after light	14.35995	14.077	14.6429
8 h after light	14.7349	14.3517	15.1181
4 h after dark	16.486449999999998	15.4343	17.5386
8 h after dark	17.51005	16.668	18.3521
12 h after dark	17.840049999999998	16.3644	19.3157