condition	mean	min	max
4 h after light	8.61114	7.87723	9.34505
8 h after light	3.8959099999999998	2.88087	4.91095
12 h after light	5.58225	4.70007	6.46443
4 h after dark	14.352966666666667	13.4267	15.7028
8 h after dark	14.906699999999999	11.8054	17.054
12 h after dark	10.32825	9.09295	11.1817