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_28611413_2 (no_in_series VARCHAR, viewers__millions_ VARCHAR)
### Question:
How many seasons had 16.15 million viewers?
### Answer:
SELECT COUNT(no_in_series) FROM table_28611413_2 WHERE viewers__millions_ = "16.15"