CREATE TABLE table_26429 ("Profile" CLOB, "Bandwidth  (  MHz  ) " CLOB, "Number of carriers" FLOAT, "Carrier bandwidth  ( kHz ) " CLOB, "Power  (  dBm  ) " CLOB, "Max. downstream throughput  (  Mbit/s  ) " FLOAT)

What are the highest mbit/s when the dbm is +17.5?
SELECT "Max. downstream throughput ( Mbit/s )" FROM table_26429 WHERE "Power ( dBm )" = '+17.5'
SELECT "Max. downstream throughput ( Mbit/s )" FROM "table_26429" WHERE "Power ( dBm )" = '+17.5'