⇣ stdron ⇣std100ron00002std500ron00010std1000ron00021std2000ron00041std5000ron00104std10000ron00207⇣ stdron ⇣std1,00000ron02071std5,00000ron104std10,00000ron207std25,00000ron518std50,00000ron1036std100,00000ron2071