How many places did the rank change since 22006 for County Leitrim?
CREATE TABLE table_1940144_1 (
    change_since_2006 VARCHAR,
    county VARCHAR
)
SELECT COUNT(change_since_2006) FROM table_1940144_1 WHERE county = "county Leitrim"
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 places did the rank change since 22006 for County Leitrim? ### Input: CREATE TABLE table_1940144_1 (
    change_since_2006 VARCHAR,
    county VARCHAR
) ### Response: SELECT COUNT(change_since_2006) FROM table_1940144_1 WHERE county = "county Leitrim"