What year did the Nashville Metros have the Regular Season 2nd, central?
CREATE TABLE table_66951 (
    "Year" real,
    "Division" text,
    "League" text,
    "Regular Season" text,
    "Playoffs" text,
    "Open Cup" text
)
SELECT "Year" FROM table_66951 WHERE "Regular Season" = '2nd, central'
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 year did the Nashville Metros have the Regular Season 2nd, central? ### Input: CREATE TABLE table_66951 (
    "Year" real,
    "Division" text,
    "League" text,
    "Regular Season" text,
    "Playoffs" text,
    "Open Cup" text
) ### Response: SELECT "Year" FROM table_66951 WHERE "Regular Season" = '2nd, central'