CREATE TABLE table_1940144_1 (change_since_2006 VARCHAR, urban_area VARCHAR)

How many places has the rank changed since 2006, for Clane?
SELECT change_since_2006 FROM table_1940144_1 WHERE urban_area = "Clane"
SELECT "change_since_2006" FROM "table_1940144_1" WHERE "Clane" = "urban_area"