When did Julie Still first win Women's singles?
CREATE TABLE table_71766 (
    "Year" real,
    "Men's singles" text,
    "Women's singles" text,
    "Men's doubles" text,
    "Women's doubles" text,
    "Mixed doubles" text
)
SELECT MIN("Year") FROM table_71766 WHERE "Women's singles" = 'julie still'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: When did Julie Still first win Women's singles? ### Input: CREATE TABLE table_71766 (
    "Year" real,
    "Men's singles" text,
    "Women's singles" text,
    "Men's doubles" text,
    "Women's doubles" text,
    "Mixed doubles" text
) ### Response: SELECT MIN("Year") FROM table_71766 WHERE "Women's singles" = 'julie still'