CREATE TABLE table_57952 ("Driver" CLOB, "Constructor" CLOB, "Laps" FLOAT, "Time/Retired" CLOB, "Grid" FLOAT)

What's the average Grid for those who spun off after Lap 64?
SELECT AVG("Grid") FROM table_57952 WHERE "Time/Retired" = 'spun off' AND "Laps" > '64'
SELECT AVG("Grid") FROM "table_57952" WHERE "Laps" > '64' AND "Time/Retired" = 'spun off'