text: 6. Income tax 
  
  a) 
  Income tax expense 
  Current tax 
  
  Deferred tax 
  
  Income tax (benefit) / expense 
  
  Deferred tax expense / (benefit) included in tax expense comprises: 
  
  (Increase) / decrease in deferred tax assets 
  
  Increase / (decrease) in deferred tax liabilities 
  
  Deferred tax 