- 'fee', 'real', 'NULL', '', '', '', # amount tax per unit
- 'excessfee', 'real', 'NULL', '', '', '', # second amount tax per unit
- 'feebase', 'real', 'NULL', '', '', '', # units taxed at first rate
- 'feemax', 'real', 'NULL', '', '', '', # maximum number of unit taxed
+ 'fee', @taxrate_typen, '', '', # amount tax per unit
+ 'excessfee', @taxrate_typen, '', '', # second amount tax per unit
+ 'feebase', @taxrate_typen, '', '', # units taxed at first rate
+ 'feemax', @taxrate_typen, '', '', # maximum number of unit taxed