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_222448_1 (percentage_yield VARCHAR, percent_defective VARCHAR)
### Question:
How many percentage yield figures are there when 6.7% are defective?
### Answer:
SELECT COUNT(percentage_yield) FROM table_222448_1 WHERE percent_defective = "6.7%"