What is the year when the spoksperson is Ruslana?
CREATE TABLE table_1998037_9 (
    year_s_ INTEGER,
    spokesperson VARCHAR
)
SELECT MIN(year_s_) FROM table_1998037_9 WHERE spokesperson = "Ruslana"
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 year when the spoksperson is Ruslana? ### Input: CREATE TABLE table_1998037_9 (
    year_s_ INTEGER,
    spokesperson VARCHAR
) ### Response: SELECT MIN(year_s_) FROM table_1998037_9 WHERE spokesperson = "Ruslana"