condition	mean	min	max
4 h after light	8.7307935	8.322675	9.138912
8 h after light	8.307321	8.259244	8.355398
12 h after light	8.141862	7.70773	8.575994
4 h after dark	8.5832665	7.924306	9.242227
8 h after dark	8.012055499999999	7.987522	8.036589
12 h after dark	8.179258	8.179258	8.179258