CREATE TABLE table_71765 ("Year" FLOAT, "Men's singles" CLOB, "Women's singles" CLOB, "Men's doubles" CLOB, "Women's doubles" CLOB, "Mixed doubles" CLOB)

When did Deng Xuan first win Women's singles?
SELECT MIN("Year") FROM table_71765 WHERE "Women's singles" = 'deng xuan'
SELECT MIN("Year") FROM "table_71765" WHERE "Women's singles" = 'deng xuan'