Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_13302 ( "Period" text, "Internet Explorer" text, "Firefox" text, "Safari" text, "Opera" text, "Netscape" text, "Other Mozilla" text )

### Question ###
What percentage of users were using Safari during the period in which 2.33% were using Opera?

### Accurate SQL ###

SELECT "Safari" FROM table_13302 WHERE "Opera" = '2.33%'