condition	mean	min	max
4 h after light	6.982184999999999	6.52952	7.43485
8 h after light	5.63558	5.46366	5.8075
12 h after light	9.22925	8.0785	10.38
4 h after dark	12.45215	11.85	13.0543
8 h after dark	12.3913	12.094	12.6886
12 h after dark	10.179549999999999	10.0368	10.3223