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 (year_opened VARCHAR, coaster_name VARCHAR)
### Question:
Which year opened has le monstre coaster?
### Answer:
SELECT year_opened FROM table_name_57 WHERE coaster_name = "le monstre"