condition	mean	min	max
4 h after light	4.171395	3.88786	4.45493
8 h after light	4.62953	4.59257	4.66649
12 h after light	5.9255949999999995	5.65311	6.19808
4 h after dark	6.403763333333334	3.97219	8.02763
8 h after dark	6.158693333333333	5.16372	6.93237
12 h after dark	5.1346	4.54427	5.51369