How many 3rd ru does Canada have? 
CREATE TABLE table_17522854_6 (country VARCHAR)
SELECT COUNT(3 AS rd_ru) FROM table_17522854_6 WHERE country = "Canada"
### Context: CREATE TABLE table_17522854_6 (country VARCHAR) ### Question: How many 3rd ru does Canada have?  ### Answer: SELECT COUNT(3 AS rd_ru) FROM table_17522854_6 WHERE country = "Canada"