⇣ irrshp ⇣irr100shp000irr500shp00001irr1000shp00002irr2000shp00004irr5000shp00009irr10000shp00019⇣ irrshp ⇣irr1,00000shp00188irr5,00000shp00940irr10,00000shp01881irr25,00000shp04702irr50,00000shp09403irr100,00000shp188