How many years is ur sulcus listed with a diameter less than 1,145.0?
CREATE TABLE table_name_68 (
    year_named VARCHAR,
    name VARCHAR,
    diameter VARCHAR
)
SELECT COUNT(year_named) FROM table_name_68 WHERE name = "ur sulcus" AND diameter < 1 OFFSET 145.0
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: How many years is ur sulcus listed with a diameter less than 1,145.0? ### Input: CREATE TABLE table_name_68 (
    year_named VARCHAR,
    name VARCHAR,
    diameter VARCHAR
) ### Response: SELECT COUNT(year_named) FROM table_name_68 WHERE name = "ur sulcus" AND diameter < 1 OFFSET 145.0