characters from Amendment 18 25 38,952 Euro sign added. [ 24 ] 3.0 September 1999 ISBN 0-201-61633-5 ISO/IEC 10646-1:2000 38 49,259 Cherokee , Ethiopic , Khmer , Mongolian , Burmese , Ogham , Runic , Sinhala , Syriac , Thaana , Unified Canadian Aboriginal Syllabics , and Yi Syllables added, as