CREATE TABLE table_67125 ("Year" FLOAT, "Tournament" TEXT, "Round 1" FLOAT, "Round 2" FLOAT, "Round 3" FLOAT, "Round 4" FLOAT, "Score" FLOAT, "To par" TEXT, "Place" TEXT, "Money  ( \\uffe5 ) " FLOAT)

What is the lowest round with a place of t15 in a year earlier than 1998?
SELECT MIN("Round 1") FROM table_67125 WHERE "Place" = 't15' AND "Year" < '1998'
SELECT MIN("Round 1") FROM "table_67125" WHERE "Place" = 't15' AND "Year" < '1998'