CREATE TABLE table_name_31 (first_year INT, notes VARCHAR, final_year VARCHAR)

What is the average First year that has a Notes of replaced by us 12 when i-94 replaced us 12, and a Final year larger than 1961?
SELECT AVG(first_year) FROM table_name_31 WHERE notes = "replaced by us 12 when i-94 replaced us 12" AND final_year > 1961
SELECT AVG("first_year") FROM "table_name_31" WHERE "final_year" > 1961 AND "notes" = "replaced by us 12 when i-94 replaced us 12"