condition	mean	min	max
4 h after light	8.25084	6.66069	9.84099
8 h after light	4.4097100000000005	4.0846	4.73482
12 h after light	6.03074	5.46374	6.59774
4 h after dark	7.20528	6.63584	7.77472
8 h after dark	8.979005	8.91129	9.04672
12 h after dark	11.9413	11.8284	12.0542