⇣ irretb ⇣irr100etb00014irr500etb00068irr1000etb00137irr2000etb00273irr5000etb00684irr10000etb01367⇣ irretb ⇣irr1,00000etb137irr5,00000etb684irr10,00000etb1367irr25,00000etb3418irr50,00000etb6837irr100,00000etb13674