How many years has there been a competition in Helsinki?
CREATE TABLE table_name_78 (year VARCHAR, location VARCHAR)
SELECT COUNT(year) FROM table_name_78 WHERE location = "helsinki"
### Context: CREATE TABLE table_name_78 (year VARCHAR, location VARCHAR) ### Question: How many years has there been a competition in Helsinki? ### Answer: SELECT COUNT(year) FROM table_name_78 WHERE location = "helsinki"