CREATE TABLE table_31968 ("Heat Rank" FLOAT, "Lane" FLOAT, "Swimmer" TEXT, "Country" TEXT, "Time" FLOAT, "Overall Rank" TEXT)

For how long did Bolivia have a lane greater than 6?
SELECT COUNT("Time") FROM table_31968 WHERE "Country" = 'bolivia' AND "Lane" > '6'
SELECT COUNT("Time") FROM "table_31968" WHERE "Country" = 'bolivia' AND "Lane" > '6'