CREATE TABLE table_63949 ("Rank" FLOAT, "Lane" FLOAT, "Name" TEXT, "Nationality" TEXT, "Time" FLOAT)

What is the time with fewer than 5 lanes for the United States?
SELECT SUM("Time") FROM table_63949 WHERE "Lane" < '5' AND "Nationality" = 'united states'
SELECT SUM("Time") FROM "table_63949" WHERE "Lane" < '5' AND "Nationality" = 'united states'