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_name_57 (population_estimate__2013_ INTEGER, percentage VARCHAR)
### Question:
What is the lowest 2013 population estimate of the province with a 23.7 percentage?
### Answer:
SELECT MIN(population_estimate__2013_) FROM table_name_57 WHERE percentage = 23.7