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"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1940144_1 (change_since_2006 VARCHAR, county VARCHAR) Question: How many places did the rank change since 22006 for County Leitrim?  [/INST] SELECT COUNT(change_since_2006) FROM table_1940144_1 WHERE county = "county Leitrim" </s>