FLEXIBILITY CAN BE DESC-FULLY ACHIEVE BY MAKE REFERENCE PERIOD YEAR , AS PROPOSE BY PARLIAMENT IN 200US WOULD REMIND X-YOU THAT OPT OUT BE ACCEPT IN 1993 , BUT AS DESC-CLEAR EXCEPTION .

flexibility can be fully achieved by making the reference period a year , as proposed by parliament in 200i would remind you that the opt out was accepted in 1993 , but as a clear exception .
