What is the total against on 08/12/1992?
CREATE TABLE table_62939 (
    "Opposing Team" text,
    "Against" real,
    "Date" text,
    "Venue" text,
    "Round" text
)
SELECT SUM("Against") FROM table_62939 WHERE "Date" = '08/12/1992'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the total against on 08/12/1992? ### Input: CREATE TABLE table_62939 (
    "Opposing Team" text,
    "Against" real,
    "Date" text,
    "Venue" text,
    "Round" text
) ### Response: SELECT SUM("Against") FROM table_62939 WHERE "Date" = '08/12/1992'