How many times was the womens doubles in china?
CREATE TABLE table_30320 (
    "Year Location" text,
    "Mens Singles" text,
    "Womens Singles" text,
    "Mens Doubles" text,
    "Womens Doubles" text
)
SELECT COUNT("Mens Singles") FROM table_30320 WHERE "Womens Doubles" = 'China'
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: How many times was the womens doubles in china? ### Input: CREATE TABLE table_30320 (
    "Year Location" text,
    "Mens Singles" text,
    "Womens Singles" text,
    "Mens Doubles" text,
    "Womens Doubles" text
) ### Response: SELECT COUNT("Mens Singles") FROM table_30320 WHERE "Womens Doubles" = 'China'