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_6 (population_density VARCHAR, name VARCHAR, change___percentage_ VARCHAR)
### Question:
What is the population density of Siglunes when the change was smaller than -8.1 percent?
### Answer:
SELECT COUNT(population_density) FROM table_name_6 WHERE name = "siglunes" AND change___percentage_ < -8.1