CREATE TABLE table_68444 ("Year" TEXT, "Start" TEXT, "Qual" TEXT, "Rank" TEXT, "Finish" TEXT, "Laps" FLOAT)

The 147.481 Qual, happened in what year?
SELECT "Year" FROM table_68444 WHERE "Qual" = '147.481'
SELECT "Year" FROM "table_68444" WHERE "Qual" = '147.481'