Table: pga_champ_96
Columns: player
country
year_s_won
total
to_par

Question: Which Total has a Year(s) won of 1991?
SQL: SELECT MIN("total") FROM pga_champ_96 WHERE "year_s_won" = '1991'

Question: Which Year(s) won with a To par of 12?
SQL: SELECT "year_s_won" FROM pga_champ_96 WHERE "to_par" = 12

Question: Which To par has a Player of jack nicklaus, and a Total smaller than 146?
SQL: SELECT AVG("to_par") FROM pga_champ_96 WHERE "player" = 'jack nicklaus' AND "total" < 146