What is the sum of Weeks on Top for the Volume:Issue 34:9-12?
CREATE TABLE table_42213 (
    "Volume:Issue" text,
    "Issue Date(s)" text,
    "Weeks on Top" real,
    "Song" text,
    "Artist" text
)
SELECT SUM("Weeks on Top") FROM table_42213 WHERE "Volume:Issue" = '34:9-12'
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 sum of Weeks on Top for the Volume:Issue 34:9-12? ### Input: CREATE TABLE table_42213 (
    "Volume:Issue" text,
    "Issue Date(s)" text,
    "Weeks on Top" real,
    "Song" text,
    "Artist" text
) ### Response: SELECT SUM("Weeks on Top") FROM table_42213 WHERE "Volume:Issue" = '34:9-12'