CREATE TABLE table_6755 ("Version" CLOB, "Length" CLOB, "Album" CLOB, "Remixed by" CLOB, "Year" FLOAT)

What year was Mother's Live remix created?
SELECT SUM("Year") FROM table_6755 WHERE "Version" = 'mother''s live remix'
SELECT SUM("Year") FROM "table_6755" WHERE "Version" = 'mother''s live remix'