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_31670 ( "Year" text, "Broadcast date" text, "BBC One total viewing" text, "BBC One Rank" text, "BBC Two total viewing" text, "BBC Two Rank" text )

### Question ###
How much is the total BBC 2 viewing in 1999?

### Accurate SQL ###

SELECT "BBC Two total viewing" FROM table_31670 WHERE "Year" = '1999'