⇣ irrxcd ⇣irr100xcd00001irr500xcd00003irr1000xcd00006irr2000xcd00013irr5000xcd00032irr10000xcd00064⇣ irrxcd ⇣irr1,00000xcd00640irr5,00000xcd032irr10,00000xcd064irr25,00000xcd160irr50,00000xcd320irr100,00000xcd640