Ro2_0      23.5633 +/- 0.0017
  Ro2_2      -1.1112 +/- 0.0012
  Ro2_4      -0.0154 +/- 0.0012
  
  Rs2_0       6.6114 +/- 0.0017
  Rs2_2       0.4883 +/- 0.0012
  Rs2_4      -0.0039 +/- 0.0012
  
 Ros2_0       0.0000 +/- 0.0017
 Ros2_2       0.6555 +/- 0.0013
 Ros2_4       0.0071 +/- 0.0013
  
  Rl2_0      27.8813 +/- 0.0017
  Rl2_2      -0.5892 +/- 0.0012
  Rl2_4       0.0236 +/- 0.0012
  
 SumRule     -0.2884 +/- 0.0025
  
 SumRule is Eq.(29) in the Symmetry paper:
 Ro2_2 - Rs2_2 + 2*Ros2_2 = ?