CREATE TABLE table_34443 ("Model" CLOB, "Release Date" FLOAT, "Price" CLOB, "MIDI Inputs/Outputs" CLOB, "Sampling Rate" CLOB, "Sampling Memory/Upgrade-able" CLOB, "Sampling Time" CLOB, "Storage Method" CLOB, "Pad Banks" FLOAT)

Around what time frame release a Sampling Rate of 12-bit 40khz?
SELECT SUM("Release Date") FROM table_34443 WHERE "Sampling Rate" = '12-bit 40khz'
SELECT SUM("Release Date") FROM "table_34443" WHERE "Sampling Rate" = '12-bit 40khz'