Table schema:
CREATE TABLE table_name_48 (to_par VARCHAR, total VARCHAR, year_won VARCHAR, player VARCHAR)

Question: What is the total to par of player jeff sluman, who won before 1993 and has a total greater than 154?
SQL: SELECT COUNT(to_par) FROM table_name_48 WHERE year_won < 1993 AND player = "jeff sluman" AND total > 154