ricardomayerb added tax system 1970-1974.md  over 9 years ago

Commit id: 2031c9fe1f74b9778cb4bd2e3411e607783dc3a9

deletions | additions      

         

In 1972 severl important modification to sales-and-buying? tax were enacted.  1. March 1971, the exempt trench of CGT rose from one to two annual vital wages  2. November 1972,   bla