Name 

Description 

 

earnHi 

Worker additional Medicare earnings, 1937 to last year considered. 

 

earnOasdi 

Worker earnings, 1937 to last year considered, after any projection of earnings. 

 

maxyear 

Maximum year of projection is 2100, unless changed. 

 

qclumpyear 

Quarters of coverage are summed before 1978, unless changed. 

 

taxType 

Type of taxes paid.
See TaxRates::taxrateType for the meaning of each bit.