What year was the year of the pig theme?
CREATE TABLE table_51196 (
    "Year" real,
    "Theme" text,
    "Artist" text,
    "Composition" text,
    "Mintage" real,
    "Issue Price" text
)
SELECT "Year" FROM table_51196 WHERE "Theme" = 'year of the pig'
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 was the year of the pig theme? ### Input: CREATE TABLE table_51196 (
    "Year" real,
    "Theme" text,
    "Artist" text,
    "Composition" text,
    "Mintage" real,
    "Issue Price" text
) ### Response: SELECT "Year" FROM table_51196 WHERE "Theme" = 'year of the pig'