35 characters in the Tai Le Unicode block.
U+1950TAI LE LETTER KAU+1951TAI LE LETTER XAU+1952TAI LE LETTER NGAU+1953TAI LE LETTER TSAU+1954TAI LE LETTER SAU+1955TAI LE LETTER YAU+1956TAI LE LETTER TAU+1957TAI LE LETTER THAU+1958TAI LE LETTER LAU+1959TAI LE LETTER PAU+195ATAI LE LETTER PHAU+195BTAI LE LETTER MAU+195CTAI LE LETTER FAU+195DTAI LE LETTER VAU+195ETAI LE LETTER HAU+195FTAI LE LETTER QAU+1960TAI LE LETTER KHAU+1961TAI LE LETTER TSHAU+1962TAI LE LETTER NAU+1963TAI LE LETTER AU+1964TAI LE LETTER IU+1965TAI LE LETTER EEU+1966TAI LE LETTER EHU+1967TAI LE LETTER UU+1968TAI LE LETTER OOU+1969TAI LE LETTER OU+196ATAI LE LETTER UEU+196BTAI LE LETTER EU+196CTAI LE LETTER AUEU+196DTAI LE LETTER AIU+1970TAI LE LETTER TONE-2U+1971TAI LE LETTER TONE-3U+1972TAI LE LETTER TONE-4U+1973TAI LE LETTER TONE-5U+1974TAI LE LETTER TONE-6