CREATE TABLE table_54113 ("Driver" CLOB, "Constructor" CLOB, "Laps" FLOAT, "Time/Retired" CLOB, "Grid" FLOAT)

What is the sum of laps for grid 20?
SELECT SUM("Laps") FROM table_54113 WHERE "Grid" = '20'
SELECT SUM("Laps") FROM "table_54113" WHERE "Grid" = '20'