CREATE TABLE table_21871 ("Fin. Pos" FLOAT, "Car No." FLOAT, "Driver" TEXT, "Team" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT, "Laps Led" FLOAT, "Points" TEXT)

If the time/retired is +1 lap, what is the amount of maximum laps?
SELECT MAX("Laps") FROM table_21871 WHERE "Time/Retired" = '+1 lap'
SELECT MAX("Laps") FROM "table_21871" WHERE "Time/Retired" = '+1 lap'