condition	mean	min	max
4 h after light	8.570861	8.260475	8.881247
8 h after light	9.415631000000001	9.108105	9.723157
12 h after light	9.119191	8.828747	9.409635
4 h after dark	9.756030500000001	9.634263	9.877798
8 h after dark	8.3296785	7.757872	8.901485
12 h after dark	8.773843	8.773843	8.773843