sigma_xx sigma_yy sigma_zz sigma_xy sigma_yz sigma_xz
  0.0729  -0.8541  -0.1420   0.2146  -0.1171  -0.3163
 -0.4356  -0.2900  -0.8884   0.2842  -0.0381  -0.3749
  0.6938   0.0308  -0.6724   0.4971   0.1113   0.1595
 -0.2738  -1.2949  -0.9182   0.0936  -0.1303  -0.2404
  1.0019  -0.1712  -0.0979  -0.1717   0.3340   0.2427
 -0.6236  -1.5897  -1.7604   0.2554   0.0058   0.2083
 -0.3959   0.7283   0.0833   0.3237   0.0392   0.0957
  0.2070   0.2000  -0.3283   0.1522  -0.5400  -0.1283
 -0.4713  -0.5590  -0.3535   0.1825  -0.0828   0.6852
 -0.0573  -0.6681  -0.8007  -0.4326  -0.1458  -0.2163
  0.4512  -0.3152   0.2116   0.2293  -0.3380  -0.2965
 -0.5449  -1.3154  -0.9666   0.2096   0.2260  -0.1495
 -0.5047  -0.4727  -0.7454  -0.5263   0.1993  -0.2318
 -0.6470  -0.3565  -0.9324   0.5848   0.1163  -0.3374
 -0.7203  -0.4416   0.9653  -0.0388  -0.1621   0.0835
  0.6752  -0.6280  -0.4597   0.6936   0.1153   0.2594
 -0.7703   0.7535  -0.3834   0.1869   0.5996  -0.3613