condition	mean	min	max
4 h after light	8.2271505	7.86923	8.585071
8 h after light	7.761086499999999	7.537449	7.984724
12 h after light	7.886424	7.773876	7.998972
4 h after dark	7.8519775	7.479616	8.224339
8 h after dark	8.481788	8.022267	8.941309
12 h after dark	7.200189	7.200189	7.200189