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_27956_3 (national_rank VARCHAR, percentage_change_yoy VARCHAR)
### Question:
Name the total number of rank for percentage change yoy 13.1%
### Answer:
SELECT COUNT(national_rank) FROM table_27956_3 WHERE percentage_change_yoy = "13.1%"