Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_20971444_3 (share__18_49_ VARCHAR, rating__18_49_ VARCHAR)
### Question:
Name the total number for 18-49 share being 18-49 being 3.1
### Answer:
SELECT COUNT(share__18_49_) FROM table_20971444_3 WHERE rating__18_49_ = "3.1"