condition	mean	min	max
4 h after light	9.477939	9.297508	9.65837
8 h after light	9.077199	8.748069	9.406329
12 h after light	9.449782	9.449782	9.449782
4 h after dark	9.494682000000001	9.449782	9.539582
8 h after dark	9.1274265	9.084735	9.170118
12 h after dark	8.446746	8.446746	8.446746