How many air dates where directed by jim donovan?
CREATE TABLE table_22325 (
    "No." real,
    "#" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Canadian air date" text,
    "U.S. air date" text,
    "Production code" real,
    "Canadian viewers (million)" text
)
SELECT COUNT("U.S. air date") FROM table_22325 WHERE "Directed by" = 'Jim Donovan'
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 air dates where directed by jim donovan? ### Input: CREATE TABLE table_22325 (
    "No." real,
    "#" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Canadian air date" text,
    "U.S. air date" text,
    "Production code" real,
    "Canadian viewers (million)" text
) ### Response: SELECT COUNT("U.S. air date") FROM table_22325 WHERE "Directed by" = 'Jim Donovan'