pid      : id of participant
 age      : "age of participant"                           
 subject  : "subject of studies"                           
 semesters: "semesters studied"                            
 gender   : "gender of participant"                        
 taxonlyfc: "Forecasts only for T"                         
 net      : "Net G and T"                                  
 neutral  : "No fiscal frame in experiment"                
 r        : "Interest Rate from Utility Function"          
 gamma    : "Weight of own consumption"                    
 cname    : "Name of country"                              
 year     : "Year"                                         
 fctime   : "Time of forecasts (seconds since 1970)"       
 deltime  : "Duration of forecast"                         
 B        : "public debt"                                  
 dB       : "change of public debt"                        
 G        : "government expanditure"                       
 T        : "taxation"                                     
 G1       : "government expanditure at t+1"                
 T1       : "taxation at t+1"                              
 Tfc      : "taxation forecasted"                          
 Gfc      : "government expanditure forecasted"            
 session  : "session of the experiment"                    
 C        : "consumption (field)"