minimize
  cvar2_err(0.9,matrix_scenarios_bank1)
minimize
  cvar2_err(0.9,matrix_scenarios_bank2)
minimize
  cvar2_err(0.9,matrix_scenarios_bank3)
minimize
  cvar2_err(0.9,matrix_scenarios_bank4)
minimize
  cvar2_err(0.9,matrix_scenarios_bank5)
minimize
  cvar2_err(0.9,matrix_scenarios_bank6)
minimize
  cvar2_err(0.9,matrix_scenarios_bank7)
minimize
  cvar2_err(0.9,matrix_scenarios_bank8)
minimize
  cvar2_err(0.9,matrix_scenarios_bank9)
minimize
  cvar2_err(0.9,matrix_scenarios_bank10)