condition	mean	min	max
4 h after light	15.3823	14.8512	15.9134
8 h after light	12.912949999999999	12.8616	12.9643
12 h after light	15.461199999999998	14.8989	16.0235
4 h after dark	16.54925	14.8419	18.2566
8 h after dark	15.6263	15.4933	15.7593
12 h after dark	14.5789	12.3667	16.7911