CREATE TABLE table_69553 ("Year" FLOAT, "Men's singles" TEXT, "Women's singles" TEXT, "Men's doubles" TEXT, "Women's doubles" TEXT, "Mixed doubles" TEXT)

What is the latest year that chou tien-chen played men's singles?
SELECT MAX("Year") FROM table_69553 WHERE "Men's singles" = 'chou tien-chen'
SELECT MAX("Year") FROM "table_69553" WHERE "Men's singles" = 'chou tien-chen'