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_63 (release_date INTEGER, sampling_rate VARCHAR)
### Question:
Around what time frame release a Sampling Rate of 12-bit 40khz?
### Answer:
SELECT SUM(release_date) FROM table_name_63 WHERE sampling_rate = "12-bit 40khz"