CREATE TABLE table_75382 ("Polling Firm" TEXT, "Date" TEXT, "PSD - PC" TEXT, "UDMR" TEXT, "Elena B\\u0103sescu" TEXT, "Others" TEXT, "Undecided" TEXT)

What is the psd-pc for 18-22/04/2009?
SELECT "PSD - PC" FROM table_75382 WHERE "Date" = '18-22/04/2009'
SELECT "PSD - PC" FROM "table_75382" WHERE "Date" = '18-22/04/2009'