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_68862 ( "Episode No." real, "Airdate" text, "Total Viewers" real, "Share" text, "BBC One Weekly Ranking" text )

### Question ###
What's the average total viewers that has 17.6% Share?

### Accurate SQL ###

SELECT AVG("Total Viewers") FROM table_68862 WHERE "Share" = '17.6%'