⇣ irrshp ⇣irr100shp000irr500shp00001irr1000shp00002irr2000shp00004irr5000shp00009irr10000shp00019⇣ irrshp ⇣irr1,00000shp00187irr5,00000shp00936irr10,00000shp01872irr25,00000shp04680irr50,00000shp09360irr100,00000shp187