What is the earliest year with a label-Nr of st-43?
CREATE TABLE table_66391 (
    "Year" real,
    "Title" text,
    "Type" text,
    "Label" text,
    "Label-Nr" text
)
SELECT MIN("Year") FROM table_66391 WHERE "Label-Nr" = 'st-43'
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 earliest year with a label-Nr of st-43? ### Input: CREATE TABLE table_66391 (
    "Year" real,
    "Title" text,
    "Type" text,
    "Label" text,
    "Label-Nr" text
) ### Response: SELECT MIN("Year") FROM table_66391 WHERE "Label-Nr" = 'st-43'