What is the mean year number where there are more than 0 wins, the class is 250cc, and the points are 95?
CREATE TABLE table_74984 (
    "Year" real,
    "Class" text,
    "Team" text,
    "Points" real,
    "Wins" real
)
SELECT AVG("Year") FROM table_74984 WHERE "Wins" > '0' AND "Class" = '250cc' AND "Points" = '95'
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: What is the mean year number where there are more than 0 wins, the class is 250cc, and the points are 95? ### Input: CREATE TABLE table_74984 (
    "Year" real,
    "Class" text,
    "Team" text,
    "Points" real,
    "Wins" real
) ### Response: SELECT AVG("Year") FROM table_74984 WHERE "Wins" > '0' AND "Class" = '250cc' AND "Points" = '95'