How many providers were founded in 1964?
CREATE TABLE table_11390711_4 (provider_iai_ VARCHAR, foundation VARCHAR)
SELECT COUNT(provider_iai_) FROM table_11390711_4 WHERE foundation = 1964
### Context: CREATE TABLE table_11390711_4 (provider_iai_ VARCHAR, foundation VARCHAR) ### Question: How many providers were founded in 1964? ### Answer: SELECT COUNT(provider_iai_) FROM table_11390711_4 WHERE foundation = 1964