Table schema:
CREATE TABLE table_name_4 (year INTEGER, points VARCHAR, team VARCHAR, engine VARCHAR)

Question: What is the total year with a Team of scuderia ferrari, an Engine of ferrari 106 2.5 l4, and more than 12 points?
SQL: SELECT SUM(year) FROM table_name_4 WHERE team = "scuderia ferrari" AND engine = "ferrari 106 2.5 l4" AND points > 12