           1           2   2.8474546827368132     
           1           3  0.98771584679908531     
           3           4   1.0016633266576003     
           4           5   2.8624810247009691     
           3           6  0.99506913988790457     
           3           7  0.89607997676658346     
           6           8  0.95381919698453399     
           6           9  0.94544837542781901     
