The output variables listed
below are available in 
Abaqus/Standard.
  -  LPF 
 
 -  .dat: no  
.fil: automatic   .odb Field: no   .odb History: automatic   
Load proportionality factor in a static Riks analysis.
  
   
-  AMPCU 
 
 -  .dat: no  
.fil: automatic   .odb Field: no   .odb History: automatic   
Current value of the solution-dependent amplitude.
  
   
-  RATIO 
 
 -  .dat: no  
.fil: automatic   .odb Field: no   .odb History: automatic   
Current maximum ratio of creep strain rate and target creep strain rate.