Table schema:
CREATE TABLE table_name_2 (tns_sofres_6_2_09 VARCHAR, ifop_5_30_09 VARCHAR)

Question: What was the TNS-Sofres when the Iflop was 5%?
SQL: SELECT tns_sofres_6_2_09 FROM table_name_2 WHERE ifop_5_30_09 = "5%"