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_45 (netscape VARCHAR, firefox VARCHAR)
### Question:
What percentage of users were using Netscape during the period in which 21.67% were using Firefox?
### Answer:
SELECT netscape FROM table_name_45 WHERE firefox = "21.67%"